JLSEC-2026-966 ImageMagick has infinite loop when writing IPTCTEXT leads to denial of service via crafted profile

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 profile contain invalid IPTC data may cause an infinite loop when writing it with IPTCTEXT. Versions 7.1.2-15 and 6.9.13-40 contain a patch...

JLSEC-2026-952 ImageMagick: Policy bypass through path traversal allows reading restricted content despite secured policy

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, ImageMagick’s path security policy is enforced on the raw filename string before the filesystem resolves it. As a result, a policy rule such as /etc/ can be...

JLSEC-2026-877

A divide-by-zero flaw was found in ImageMagick 6.9.11-57 and 7.0.10-57 in gem.c. This flaw allows an attacker who submits a crafted file that is processed by ImageMagick to trigger undefined behavior through a division by zero. The highest threat from this vulnerability is to system availability...

JLSEC-2026-902

A heap-based buffer overflow issue was discovered in ImageMagick's ImportMultiSpectralQuantum function in MagickCore/quantum-import.c. An attacker could pass specially crafted file to convert, triggering an out-of-bounds read error, allowing an application to crash, resulting in a denial of servi...

JLSEC-2026-890

ImageMagick is free software delivered as a ready-to-run binary distribution or as source code that you may use, copy, modify, and distribute in both open and proprietary applications. In affected versions and in certain cases, Postscript files could be read and written when specifically excluded...

JLSEC-2026-862

In /MagickCore/statistic.c, there are several areas in ApplyEvaluateOperator where a sizet cast should have been a ssizet cast, which causes out-of-range values under some circumstances when a crafted input file is processed by ImageMagick. Red Hat Product Security marked this as Low severity...

JLSEC-2026-1083 ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line...

ImageMagick before 7.1.2-27 contains a memory leak vulnerability in the magick command-line interface when invalid options are provided. Attackers can trigger memory exhaustion by repeatedly supplying malformed command-line arguments to consume system resources...

JLSEC-2026-850

A flaw was found in ImageMagick in MagickCore/quantum-private.h. An attacker who submits a crafted file that is processed by ImageMagick could trigger a heap buffer overflow. This would most likely lead to an impact to application availability, but could potentially lead to an impact to data...

JLSEC-2026-836

In ImageMagick before 7.0.8-25, a memory leak exists in WritePSDChannel in coders/psd.c...

JLSEC-2026-843

There are 4 places in HistogramCompare in MagickCore/histogram.c where an integer overflow is possible during simple math calculations. This occurs in the rgb values and count value for a color. The patch uses casts to ssizet type for these calculations, instead of int. This flaw could impact...

JLSEC-2026-838

In ImageMagick before 7.0.8-25 and GraphicsMagick through 1.3.31, several memory leaks exist in WritePDFImage in coders/pdf.c...

JLSEC-2026-839

In ImageMagick before 7.0.8-25, a memory leak exists in WriteDIBImage in coders/dib.c...

JLSEC-2026-880

A flaw was found in ImageMagick in MagickCore/resize.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of math division by zero. The highest threat from this vulnerability is to system availability...

JLSEC-2026-872

A flaw was found in ImageMagick in MagickCore/statistic.c. An attacker who submits a crafted file that is processed by ImageMagick could trigger undefined behavior in the form of a too large shift for 64-bit type ssizet. This would most likely lead to an impact to application availability, but...

JLSEC-2026-1031 ImageMagick has Null Pointer Dereference caused by the distort operation when passing incorrect arguments

ImageMagick is free and open-source software used for editing and manipulating digital images. Prior to versions 6.9.13-50 and 7.1.2-25, when passing incorrect arguments in the distort operation a null pointer deference will occur. This issue has been patched in versions 6.9.13-50 and 7.1.2-25...

JLSEC-2026-821

Giflib contains a double-free vulnerability that is the result of a shallow copy in GifMakeSavedImage and incorrect error handling. The conditions needed to trigger this vulnerability are difficult but may be possible...

JLSEC-2026-822

Buffer Overflow vulnerability in giflib v.5.2.2 allows a remote attacker to cause a denial of service via the EGifGCBToExtension overwriting an existing Graphic Control Extension block without validating its allocated size...

JLSEC-2026-818

giflib v5.2.1 was discovered to contain a segmentation fault via the component getarg.c...

JLSEC-2026-820

Giflib Project v5.2.2 is vulnerable to a heap buffer overflow via gif2rgb...

JLSEC-2026-817

There is a heap-buffer-overflow in GIFLIB 5.2.1 function DumpScreen2RGB in gif2rgb.c:298:45...

JLSEC-2026-816

A memory leak out-of-memory in gif2rgb in util/gif2rgb.c in giflib 5.1.4 allows remote attackers trigger an out of memory exception or denial of service via a gif format file...

JLSEC-2026-814

In GIFLIB before 2019-02-16, a malformed GIF file triggers a divide-by-zero exception in the decoder function DGifSlurp in dgiflib.c if the height field of the ImageSize data structure is equal to zero...

JLSEC-2026-815

An issue was discovered in giflib through 5.1.4. DumpScreen2RGB in gif2rgb.c has a heap-based buffer over-read...

JLSEC-2026-819

Buffer Overflow vulnerability in GifLib Project GifLib v.5.2.1 allows a local attacker to obtain sensitive information via the DumpSCreen2RGB function in gif2rgb.c...

JLSEC-2026-810 Possible out-of-bounds access in OpenEXR's `IDManifest::init()`

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, IDManifest::init reconstructs strings from a prefix-compressed...

JLSEC-2026-813 Crafted HTJ2K compressed EXR files can trigger out of bounds reads in OpenEXR

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.11, the HTJ2K High-Throughput JPEG 2000 decoder, htundoimpl in OpenEXRCore is vulnerable to a heap-buffer-overflow READ. The htundoimp...

JLSEC-2026-812 Heap buffer overflow when decoding a malicious HTJ2K-compressed EXR file

OpenEXR is the reference implementation and specification for the EXR image format, widely used in the motion picture industry. In versions 3.4.0 through 3.4.11, an integer overflow in htundoimpl in src/lib/OpenEXRCore/internalht.cpp leads to a heap-buffer overflow when decoding a crafted...

JLSEC-2026-806 Reading malicious EXR files can cause out-of-bounds writes

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. Versions 3.4.0 through 3.4.9 have a signed integer overflow vulnerability in OpenEXR's HTJ2K High-Throughput JPEG 2000 decompression path. The htundoimp...

JLSEC-2026-811 A malicious EXR file can trigger undefined behavior in OpenEXR

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, readVariableLengthInteger decodes a variable-length integer fro...

JLSEC-2026-807 Integer overflow in OpenEXR's `internal_dwa_compressor`

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, internaldwacompressor.h:1722 performs curc-width curc-height in int32...

JLSEC-2026-808 Integer overflow in OpenEXR's `internal_dwa_compressor`

OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. In versions 3.4.0 through 3.4.9, 3.3.0 through 3.3.9, and 3.2.0 through 3.2.7, internaldwacompressor.h:1040 performs chan-width chan-bytesperelement in...

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-2026-804 Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package...

Deserialization of untrusted data in IPC and Parquet readers in the Apache Arrow R package versions 4.0.0 through 16.1.0 allows arbitrary code execution. An application is vulnerable if it reads Arrow IPC, Feather or Parquet data from untrusted sources for example, user-supplied input files. This...

JLSEC-2026-805 Apache Arrow: Potential use-after-free when reading IPC file with pre-buffering

Use After Free vulnerability in Apache Arrow C++. This issue affects Apache Arrow C++ from 15.0.0 through 23.0.0. It can be triggered when reading an Arrow IPC file but not an IPC stream with pre-buffering enabled, if the IPC file contains data with variadic buffers such as Binary View and String...

JLSEC-2026-799 Unauthenticated TLS records can exhaust memory or CPU during a handshake

Reseau 1.1.0 through 1.3.1 contain two resource-exhaustion conditions in the native TLS 1.2 and TLS 1.3 record layers. An unauthenticated network peer can send records that consume memory without a bound or keep a handshake task processing non-progressing input. Impact A peer can retain...

JLSEC-2026-800 Slow DNS lookups can stall garbage collection process-wide

Reseau 1.0.0 through 1.3.1 perform the blocking system getaddrinfo operation from Julia-adopted resolver threads without marking the foreign call as garbage-collector safe. An attacker who can cause an application to resolve a slow hostname can delay stop-the-world garbage collection for the enti...

JLSEC-2026-798 TLS 1.3 KeyUpdate handling can race concurrent writes

Reseau 1.1.0 through 1.3.1 process a peer-requested TLS 1.3 KeyUpdateupdaterequested response from the read path without acquiring the connection's write lock. A connected peer can race that response against an application task writing on the same connection. Impact The two tasks can concurrently...

JLSEC-2026-803 Windows IOCP poller races unsynchronized registration tables

Reseau 1.0.0 through 1.3.1 access the Windows I/O completion port IOCP backend's registration dictionary and zombie vector concurrently from the poller and application threads without consistently taking the same lock. A remote peer can increase the likelihood of the race by driving connection...

JLSEC-2026-801 Native TLS accepts undersized or malformed RSA certificate public keys

Reseau 1.1.0 through 1.3.1 enforce an upper bound on RSA certificate keys but no minimum modulus size and no sanity checks on the public exponent. A certificate chain containing a factorable RSA key can therefore pass Reseau's key-strength checks. Impact Exploitation requires a weak RSA key to...

JLSEC-2026-797 Windows IOCP lifetime bugs can corrupt memory during cancellation or shutdown

Reseau releases before 1.3.3 contain related lifetime defects in the Windows I/O completion port IOCP backend. During cancellation or event-loop shutdown, the package can stop retaining memory that the Windows kernel still owns. A remote peer that can time or stall I/O around application-driven...

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-2026-796 XSS via unescaped code-fence language in default code block renderer

Hugo is a static site generator. From 0.60.0 until 0.163.3, Hugo's default code-block renderer wrote the Markdown code-fence language or info-string into the code class="language-…" data-lang="…" wrapper without HTML escaping. A fence info-string containing a quote and a script payload breaks out...

JLSEC-2026-795 Hugo: security.http.urls allow-list bypass via HTTP redirects

Commit: 86fbb0f7a8 — security: Validate redirects against security.http.urls Affected versions: v0.91.0 when security.http.urls was introduced through v0.161.1. Fixed in: v0.162.0. Severity: Only relevant for sites that rely on security.http.urls as a trust boundary — e.g. CI builds that fetch...

JLSEC-2026-792 Hugo: Certain markdown links are not properly escaped

Impact Links and image links in the default markdown to HTML renderer are not properly escaped. Hugo users who trust their Markdown content or have custom render hooks for links and images are not affected. Patches Patched in v0.159.2 Workarounds Create custom render hooks for links and images in...

JLSEC-2026-793 Hugo's Node tool execution allows file system access outside the project directory

Impact When building a Hugo site that uses Node-based asset pipelines PostCSS, Babel, TailwindCSS, Hugo invoked the configured Node tools without restrictions on file system access. As a result, executing hugo against an untrusted site could allow code running through these tools to read or write...

JLSEC-2026-794 Hugo: XSS via text/html content files

Commit: e41a06447d — Disallow HTML content by default Affected versions: all Hugo versions prior to v0.162.0. Fixed in: v0.162.0. Severity: Low to Medium, depending on threat model. Not an issue if you fully trust every file under /content and every content adapter you load. Description. Hugo...

JLSEC-2026-791 Writing to SFTP files resulting in sending out-of-bounds data to the server

Impact The write::SftpFile, ::DenseVector method assumed that the element type of the input vector had a size of 1 byte e.g. Int8/UInt8, and used lengthdata instead of sizeofdata to get the number of bytes to send. If the input vector had a eltype with size more than 1 byte then this would result...

JLSEC-2026-789 A malicious h.265 bitstream can cause an out-of-bounds write in libde265

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.0.20, a crafted H.265 bitstream can cause an out-of-bounds array write in decodercontext::processreferencepictureset libde265/decctx.cc:1376. The root cause is a missing aggregate bound check on predicted...

JLSEC-2026-790 A malicious h.265 bitstream can cause integer overflow and out of bounds writes in libde265

libde265 is an open source implementation of the h.265 video codec. Prior to version 1.1.0, a crafted H.265 bitstream with large SPS dimensions and 16-bit bit depth causes a signed integer overflow in de265imagegetbuffer libde265/image.cc:128. The overflow wraps the plane allocation size to a sma...

JLSEC-2026-788 Buffer overflow in gawk's `readdir.c` can cause denial of service and possible code execution

Buffer overflow vulnerability has been found in "extension/readdir.c" program file of gawk ftype routine. This issue could be used to crash the program and potentially to achieve code execution, although the latter has not been confirmed to be feasible. It affects gawk in versions 5.4.0 and below...