JLSEC-2026-1369

libgit2 is a portable C implementation of the Git core methods provided as a linkable library with a solid API, allowing to build Git functionality into your application. Prior to 1.8.6 and 1.9.5, verifyservercert in src/libgit2/streams/openssl.c uses an inverted !!memcmp result in the GENIPADD...

JLSEC-2026-1348 Wasmtime doesn't fully sandbox all the Windows device filenames

Impact Wasmtime's filesystem sandbox implementation on Windows blocks access to special device filenames such as "COM1", "COM2", "LPT0", "LPT1", and so on, however it did not block access to the special device filenames which use superscript digits, such as "COM¹", "COM²", "LPT⁰", "LPT¹", and so...

JLSEC-2026-1364 Wasmtime has out-of-bounds write or crash when transcoding component model strings

Impact Wasmtime's implementation of transcoding strings between components contains a bug where the return value of a guest component's realloc is not validated before the host attempts to write through the pointer. This enables a guest to cause the host to write arbitrary transcoded string bytes...

JLSEC-2026-1310

Exiv2 is a command-line utility and C++ library for reading, writing, deleting, and modifying the metadata of image files. An out-of-bounds read was found in Exiv2 versions v0.27.4 and earlier. The out-of-bounds read is triggered when Exiv2 is used to read the metadata of a crafted image file. An...

JLSEC-2026-1298

Buffer Overflow vulnerability in libxlsv.1.6.2 allows a remote attacker to execute arbitrary code and cause a denial of service via a crafted XLS file to the transcodelatin1toutf8 function in xlstool.c:296...

JLSEC-2026-1290

There is a buffer over-read in Ruby before 2.6.10, 2.7.x before 2.7.6, 3.x before 3.0.4, and 3.1.x before 3.1.2. It occurs in String-to-Float conversion, including KernelFloat and Stringtof...

JLSEC-2026-1262 In wxWidgets before 3.2.7, a crash can be triggered in wxWidgets apps when connections are...

In wxWidgets before 3.2.7, a crash can be triggered in wxWidgets apps when connections are refused in wxWebRequestCURL...

JLSEC-2026-1253

libmodbus v3.1.10 is vulnerable to Buffer Overflow via the modbuswritebits function. This issue can be triggered when the function is fed with specially crafted input, which leads to out-of-bounds read and can potentially cause a crash or other unintended behaviors...

JLSEC-2026-1251

libmodbus v3.1.10 has a heap-based buffer overflow vulnerability in readiostatus function in src/modbus.c...

JLSEC-2026-1244 A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the...

A flaw was found in GLib. An out-of-bounds read of only 2 bytes can occur in the gdatetimegetymd function in the glib/gdatetime.c file when an invalid GDateTime object produced by the gdatetimeaddfull function is processed. This flaw can corrupt the date output and potentially cause logic errors...

JLSEC-2026-1214 The curl logic that works with SASL authentication could end up cleaning up the GSASL context ...

The curl logic that works with SASL authentication could end up cleaning up the GSASL context twice without clearing the pointer in between, making it free the same pointer twice...

JLSEC-2026-1171 FFmpeg's RASC video decoder (decode_dlta in libavcodec/rasc.c) performs 32-bit reads and writes...

FFmpeg's RASC video decoder decodedlta in libavcodec/rasc.c performs 32-bit reads and writes at the row cursor before the NEXTLINE row-boundary check and validates the DLTA region in pixel rather than byte units, so a DLTA run on a PAL8 frame can access several bytes past the row allocation. A...

JLSEC-2026-1178 FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video...

FFmpeg versions 2.7 through 8.1.2 contain an out-of-bounds write vulnerability in the TDSC video decoder that allows remote attackers to cause heap corruption by supplying a crafted AVI file that changes frame dimensions across TDSF frames. The tdscparsetdsf function fails to unreference the...

JLSEC-2026-1176 FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer...

FFmpeg versions 0.6.3 through 8.1.2 contain an infinite loop vulnerability in the RTP/ASF demuxer within libavformat/rtpdecasf.c that allows remote attackers to cause denial of service by sending a crafted RTP/ASF stream. The rtpasffixheader function fails to validate a minimum chunksize when...

JLSEC-2026-1175 FFmpeg versions 0.7.1 through 8.1.2 contain an out-of-bounds read vulnerability in the S/PDIF...

FFmpeg versions 0.7.1 through 8.1.2 contain an out-of-bounds read vulnerability in the S/PDIF muxer that allows attackers to access memory beyond buffer boundaries by supplying a crafted DTS stream with a coresize value larger than the actual packet length. Attackers can exploit the missing bound...

JLSEC-2026-1187 FFmpeg 7.0 through 8.1.2, fixed in commit 4da9812, contains a heap out-of-bounds write...

FFmpeg 7.0 through 8.1.2, fixed in commit 4da9812, contains a heap out-of-bounds write vulnerability in the vfquirc filter that allows an attacker to corrupt heap memory by supplying a crafted PGS/SUP subtitle file with mismatched frame dimensions. Attackers can provide a subtitle file whose seco...

JLSEC-2026-1180 FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the...

FFmpeg versions 3.4 through 8.1.2 contain an out-of-bounds write vulnerability in the vffloodfill video filter that allows attackers to corrupt heap memory by supplying a dynamically sized video stream with filtergraph reinitialization disabled via -reinitfilter 0. When configinput allocates the...

JLSEC-2026-1164 Deno: `fetch()` API sandbox bypass via missing DNS resolution check

Summary When fetch was called, Deno checked the destination hostname against --deny-net rules but did not re-check the IP addresses that hostname resolved to. An attacker-controlled script could use a specially crafted domain name that passes the hostname check yet resolves to a denied IP,...

JLSEC-2026-1159 GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in...

GNU Wget through 1.25.0, fixed in commit 43d3ba9, contains an integer overflow vulnerability in the parsecontentrange function within src/http.c that allows server-controlled values to cause signed integer arithmetic to overflow. Attackers can supply malicious Content-Range header values to trigg...

JLSEC-2026-1124

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, for MQTT deployments using usercodes/passwords: MQTT passwords are incorrectly classified as a non-authenticating identity statement JWT and exposed via monitoring...

JLSEC-2026-1142 Issue summary: When EVP_PKEY_derive_set_peer() is called with a DHX (X9.42) peer key, the peer...

Issue summary: When EVPPKEYderivesetpeer is called with a DHX X9.42 peer key, the peer key is not properly checked for the subgroup membership. Impact summary: A malicious peer which presents an X9.42 key carrying the victim's p and g parameters, a forged q = r a small prime factor of the cofacto...

JLSEC-2026-1143 Issue summary: When an application drives an AES-OCB context through the public EVP_Cipher() one...

Issue summary: When an application drives an AES-OCB context through the public EVPCipher one-shot interface, the application-supplied initialisation vector IV is silently discarded. Impact summary: Every message encrypted under the same key uses the same effective nonce regardless of the IV...

JLSEC-2026-1146

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, MQTT retained message delivery and QoS1+ durable replay could deliver messages whose original topics matched a subscriber configured subscribe deny rule because these...

JLSEC-2026-1155 Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in...

Issue summary: A signed integer overflow when sizing the destination buffer for Unicode output in ASN1mbstringncopy can lead to a heap buffer overflow. Impact summary: A heap buffer overflow may lead to a crash or possibly attacker controlled code execution or other undefined behaviour. In...

JLSEC-2026-1118

A flaw has been found in LibRaw up to 0.22.0. This affects the function LibRaw::nikonloadpaddedpackedraw of the file src/decoders/decoderslibraw.cpp of the component TIFF/NEF. Executing a manipulation of the argument loadflags/rawwidth can lead to out-of-bounds read. It is possible to launch the...

JLSEC-2026-963 ImageMagick has a heap buffer over-read in its MAP image decoder

A heap buffer over-read vulnerability exists in the MAP image decoder when processing crafted MAP files, potentially leading to crashes or unintended memory disclosure during image decoding. ================================================================= ==4070926==ERROR: AddressSanitizer:...

JLSEC-2026-899

A vulnerability was found in ImageMagick, causing an outside the range of representable values of type 'unsigned long' at coders/pcl.c, when crafted or untrusted input is processed. This leads to a negative impact to application availability or other problems related to undefined behavior...

JLSEC-2026-887

A flaw was found in ImageMagick in versions 7.0.11, where an integer overflow in WriteTHUMBNAILImage of coders/thumbnail.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from this...

JLSEC-2026-1077 ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the ICON decoder that occurs...

ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the ICON decoder that occurs when a memory allocation fails. Processing a crafted ICON file that triggers an allocation failure leaks memory, which may lead to a denial of service...

JLSEC-2026-951 ImageMagick has Global Buffer Overflow (OOB Read) via Negative Pixel Index in UIL and XPM Writer

The UIL and XPM image encoder do not validate the pixel index value returned by GetPixelIndex before using it as an array subscript. In HDRI builds, Quantum is a floating-point type, so pixel index values can be negative. An attacker can craft an image with negative pixel index values to trigger ...

JLSEC-2026-1052 ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing...

ImageMagick before 7.1.2-15 and 6.9.13-40 contains a memory leak in coders/txt.c when processing TXT files with texture attributes: the texture object allocated via ReadImage is not released when GetTypeMetrics fails, leaking memory each time a crafted TXT file with a texture attribute is process...

JLSEC-2026-1063 ImageMagick before 7.1.2-26 contains a heap use-after-free vulnerability caused by missing null...

ImageMagick before 7.1.2-26 contains a heap use-after-free vulnerability caused by missing null check when parsing XMP profiles. Attackers can craft malicious image files with specially crafted XMP data to trigger the vulnerability and cause application crashes...

JLSEC-2026-940 ImageMagick: Infinite loop vulnerability when parsing a PCD file

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, when a PCD file does not contain a valid Sync marker, the DecodeImage function becomes trapped in an infinite loop while searching for the Sync marker, causing...

JLSEC-2026-960 ImageMagick has Use After Free in MSLStartElement in "coders/msl.c"

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a crafted MSL script triggers a heap-use-after-free. The operation element handler replaces and frees the image while the parser continues reading from it,...

JLSEC-2026-1078 ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the TIFF encoder when an...

ImageMagick before 7.1.2-26 and 6.9.13-51 contains a memory leak in the TIFF encoder when an invalid tiff:tile-geometry is specified. Supplying malformed tile geometry parameters causes allocated memory not to be released, which can lead to increased memory consumption...

JLSEC-2026-981 ImageMagick: Integer overflow in DIB coder can result in out of bounds read or write

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-16 and 6.9.13-41, an integer overflow in DIB coder can result in out of bounds read or write. This vulnerability is fixed in 7.1.2-16 and 6.9.13-41...

JLSEC-2026-1013 ImageMagick: Heap Buffer Over-Write in MIFF encoder when using LZMA compression

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, when using LZMA compression in the MIFF encoder an out of bounds write can occur due to a missing check. This issue has been patched in versions 6.9.13-48 and...

JLSEC-2026-875

A heap based buffer overflow in coders/tiff.c may result in program crash and denial of service in ImageMagick before 7.0.10-45...

JLSEC-2026-1076 ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memory...

ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memory allocation fails. Attackers can trigger allocation failures by processing specially crafted VIFF images to exhaust available memory and cause denial of service...

JLSEC-2026-945 ImageMagick has NULL pointer dereference in ReadSFWImage after DestroyImageInfo (sfw.c)

In ReadSFWImage coders/sfw.c, when temporary file creation fails, readinfo is destroyed before its filename member is accessed, causing a NULL pointer dereference and crash. AddressSanitizer:DEADLYSIGNAL ================================================================= ==1414421==ERROR:...

JLSEC-2026-959 ImageMagick has Heap Out-of-Bounds Read in DCM Decoder (ReadDCMImage)

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 7.1.2-15 and 6.9.13-40, a heap out-of-bounds read vulnerability exists in the coders/dcm.c module. When processing DICOM files with a specific configuration, the decoder loop incorrect...

JLSEC-2026-1019 ImageMagick: Race Condition in distributed pixel cache server can result in file descriptor hijacking

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-48 and 7.1.2-23, an attacker who can connect to a magick -distribute-cache service can hijack a file descriptor in the server process when a race condition is met. This issue ha...

JLSEC-2026-1040 ImageMagick: Heap Buffer Over-Write in JP2 encoder when due to incorrect handling of arguments

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to version 7.1.2-26, an incorrect handling of arguments can cause a heap buffer over-write in the JP2 encoder. This issue has been fixed in version7.1.2-26...

JLSEC-2026-935 ImageMagick MSL: Stack overflow via infinite recursion in ProcessMSLScript

Summary Stack overflow via infinite recursion in MSL Magick Scripting Language command when writing to MSL format. Version - ImageMagick 7.x tested on current main branch - Commit: HEAD - Requires: libxml2 support for MSL parsing Steps to Reproduce Method 1: Using ImageMagick directly bash magick...

JLSEC-2026-1065 ImageMagick before 7.1.2-26 and 6.9.13-x before 6.9.13-51 contains a policy bypass vulnerability...

ImageMagick before 7.1.2-26 and 6.9.13-x before 6.9.13-51 contains a policy bypass vulnerability in the -script operation due to missing security policy checks. This allows reading files from paths that are otherwise disallowed by the configured security policy...

JLSEC-2026-885

A flaw was found in ImageMagick in versions before 7.0.11, where a division by zero ConvertXYZToJzazbz of MagickCore/colorspace.c may trigger undefined behavior via a crafted image file that is submitted by an attacker and processed by an application using ImageMagick. The highest threat from thi...

JLSEC-2026-957 ImageMagick Has Signed Integer Overflow in SIXEL Decoder, Leading to Memory Corruption

A signed integer overflow vulnerability in ImageMagick's SIXEL decoder allows an attacker to trigger memory corruption and denial of service when processing a maliciously crafted SIXEL image file. The vulnerability occurs during buffer reallocation operations where pointer arithmetic using signed...

JLSEC-2026-809 Integer overflow in OpenEXR's `ImageChannel:resize`

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From versions 3.0.0 to before 3.2.9, 3.3.0 to before 3.3.11, and 3.4.0 to before 3.4.11, there is an integer overflow in ImageChannel::resize that leads...

JLSEC-2026-802 TLS 1.2 session resumption can renew one master secret indefinitely

Reseau 1.1.0 through 1.3.1 issue a fresh TLS 1.2 session ticket after a resumed handshake by copying the original master secret while resetting the ticket's creation and expiry times. A client that resumes at least once during every ticket lifetime can keep the same master secret valid...

JLSEC-2026-785 Use after free vulnerability in gawk 5.4.0 and earlier

Use After Free vulnerability has been found in "io.c" program file of gawk dogetlineredir routine. This issue may lead to a crash. It affects gawk in versions 5.4.0 and below...