1717 matches found
JLSEC-2026-711 Stack Buffer Overflow in `wc_HpkeLabeledExtract` via Oversized ECH Config
Stack Buffer Overflow in wcHpkeLabeledExtract via Oversized ECH Config. A vulnerability existed in wolfSSL 5.8.4 ECH Encrypted Client Hello support, where a maliciously crafted ECH config could cause a stack buffer overflow on the client side, leading to potential remote execution and client...
JLSEC-2026-721 Dual-Algorithm CertificateVerify out-of-bounds read
Dual-Algorithm CertificateVerify out-of-bounds read. When processing a dual-algorithm CertificateVerify message, an out-of-bounds read can occur on crafted input. This can only occur when --enable-experimental and --enable-dual-alg-certs is used when building wolfSSL...
JLSEC-2026-729 wolfSSL's `wc_PKCS7_DecodeAuthEnvelopedData()` does not properly sanitize the AES-GCM authentication...
wolfSSL's wcPKCS7DecodeAuthEnvelopedData does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A man-in-the-middle can therefore truncate the mac field from 16 bytes to 1 byte, reducing the tag check from 2⁻¹²⁸ to 2⁻⁸...
JLSEC-2026-747 PKCS#12 MAC verification uses an attacker-controlled comparison length, weakening the integrity...
PKCS12 MAC verification uses an attacker-controlled comparison length, weakening the integrity check on the MAC and allowing a mismatched MAC to be accepted. The PKCS12 verify path compared the locally computed HMAC against the MAC parsed from the PKCS12 structure using a length taken directly fr...
JLSEC-2026-660 libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service...
libssh2 through 1.11.1, fixed in commit 1762685, contains a pre-authentication denial of service vulnerability in the SSHMSGEXTINFO handler in src/packet.c that allows a malicious SSH server to cause a client CPU exhaustion loop by sending a crafted extension count value. A malicious server can s...
JLSEC-2026-641
A NULL pointer dereference vulnerability exists in FFmpeg’s Firequalizer filter libavfilter/affirequalizer.c due to a missing check on the return value of avmallocarray in the configinput function. An attacker could exploit this by tricking a victim into processing a crafted media file with the...
JLSEC-2026-650
An improper resource deallocation and closure vulnerability in the tools/zmqsend.c component of FFmpeg v8.0.1 allows attackers to cause a Denial of Service DoS via supplying a crafted input file...
JLSEC-2026-615 Cookie jar accepts `Secure/__Host-/__Secure-` cookies from non-secure origins in HTTP.jl
Description setcookies! stored every parsed Set-Cookie after only checking that the response scheme was http or https, with no protection symmetric to the read path shouldsend, which already withholds Secure cookies from non-secure requests. A plaintext http origin could therefore plant a Secure...
JLSEC-2026-572
libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.21.2 and prior contain a heap-buffer-overflow write vulnerability in the grid tile compositing, allowing an attacker to write 64 bytes of fully attacker-controlled data past the end of a chroma plane heap allocation by craftin...
JLSEC-2026-567
A vulnerability classified as problematic was found in OpenCV wechatqrcode Module up to 4.7.0. Affected by this vulnerability is the function DecodedBitStreamParser::decodeByteSegment of the file qrcode/decoder/decodedbitstreamparser.cpp. The manipulation leads to null pointer dereference. The...
JLSEC-2026-526
A vulnerability was found in GnuTLS, where a cockpit which uses gnuTLS rejects a certificate chain with distributed trust. This issue occurs when validating a certificate chain with cockpit-certificate-ensure. This flaw allows an unauthenticated, remote client or attacker to initiate a denial of...
JLSEC-2026-515
There's a flaw in the zeromq server in versions before 4.3.3 in src/decoderallocators.hpp. The decoder static allocator could have its sized changed, but the buffer would remain the same as it is a static buffer. A remote, unauthenticated attacker who sends a crafted request to the zeromq server...
JLSEC-2026-478
zlib through 1.2.12 has a heap-based buffer over-read or buffer overflow in inflate in inflate.c via a large gzip header extra field. NOTE: only applications that call inflateGetHeader are affected. Some common applications bundle the affected zlib source code but may be unable to call...
JLSEC-2026-440
There exists a use after free/double free in libwebp. An attacker can use the ApplyFiltersAndEncode function and loop through to free best.bw and assign best = trial pointer. The second loop will then return 0 because of an Out of memory error in VP8 encoder, the pointer is still assigned to tria...
JLSEC-2026-436
libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of...
JLSEC-2026-406
A path traversal vulnerability exists in curl 8.0.0 SFTP implementation causes the tilde character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can...
JLSEC-2026-439 When doing a second SMB request to the same host again, curl would wrongly use a data pointer...
When doing a second SMB request to the same host again, curl would wrongly use a data pointer pointing into already freed memory...
JLSEC-2026-386
An insufficiently protected credentials vulnerability exists in curl 4.9 to and include curl 7.82.0 are affected that could allow an attacker to extract credentials when follows HTTPS redirects is used with authentication could leak credentials to other services that exist on different protocols ...
JLSEC-2026-380
In libexpat before 2.7.4, the doContent function does not properly determine the buffer size bufSize because there is no integer overflow check for tag buffer reallocation...
JLSEC-2026-377
There exists interger overflows in libvpx in versions prior to 1.14.1. Calling vpximgalloc with a large value of the dw, dh, or align parameter may result in integer overflows in the calculations of buffer sizes and offsets and some fields of the returned vpximaget struct may be invalid. Calling...
JLSEC-2026-367 A security vulnerability has been detected in Cesanta Mongoose up to 7.20
A security vulnerability has been detected in Cesanta Mongoose up to 7.20. This affects the function getpeer of the file /src/netbuiltin.c of the component TCP Sequence Number Handler. The manipulation leads to improper verification of source of a communication channel. The attack may be initiate...
JLSEC-2026-364
There is a heap overflow problem in video/SDLpixels.c in SDL Simple DirectMedia Layer 2.x to 2.0.18 versions. By crafting a malicious .BMP file, an attacker can cause the application using this library to crash, denial of service or Code execution...
JLSEC-2026-360
readheadertga in gdtga.c in the GD Graphics Library aka LibGD through 2.3.2 allows remote attackers to cause a denial of service out-of-bounds read via a crafted TGA file...
JLSEC-2026-356
A flaw was found in gnuplot. The GetAnnotateString function may lead to a segmentation fault and cause a system crash...
JLSEC-2026-340
A vulnerability, which was classified as critical, has been found in HDF5 up to 1.14.6. Affected by this issue is the function H5FSsectfindnode of the file H5FSsection.c. The manipulation leads to heap-based buffer overflow. It is possible to launch the attack on the local host. The exploit has...
JLSEC-2026-323
HDF5 Library through 1.14.3 has a heap buffer overflow in H5Spointdeserialize in H5Spoint.c...
JLSEC-2026-312
HDF5 Library through 1.14.3 contains a heap-based buffer over-read caused by the unsafe use of strdup in H5MMxstrdup in H5MM.c called from H5Genttolink in H5Glink.c...
JLSEC-2026-321
HDF5 Library through 1.14.3 has a heap buffer overflow in H5Omtimenewencode in H5Omtime.c...
JLSEC-2026-338
hdf5 v1.14.6 was discovered to contain a heap buffer overflow via the H5Zfilterscaleoffset function...
JLSEC-2026-176
libpcre in PCRE before 8.43 allows a subject buffer over-read in JIT when UTF is disabled, and \X or \R has more than one fixed quantifier, a related issue to CVE-2019-20454...
JLSEC-2026-172
A flaw was discovered in OpenLDAP before 2.4.57 leading in an assertion failure in slapd in the X.509 DN parsing in decode.c bernextelement, resulting in denial of service...
JLSEC-2026-167
A flaw was discovered in OpenLDAP before 2.4.57 leading to a double free and slapd crash in the saslAuthzTo processing, resulting in denial of service...
JLSEC-2026-149
OpenEXR provides the specification and reference implementation of the EXR file format, an image storage format for the motion picture industry. From 3.2.0 to before 3.2.7, 3.3.9, and 3.4.9, the DWA lossy decoder constructs temporary per-component block pointers using signed 32-bit arithmetic. Fo...
JLSEC-2026-132
OpenEXR 3.1.x before 3.1.4 has a heap-based buffer overflow in Imf31::LineCompositeTask::execute called from IlmThread31::NullThreadPoolProvider::addTask and IlmThread31::ThreadPool::addGlobalTask. NOTE: db217f2 may be inapplicable...
JLSEC-2026-128
There's a flaw in OpenEXR's ImfDeepScanLineInputFile functionality in versions prior to 3.0.5. An attacker who is able to submit a crafted file to an application linked with OpenEXR could cause an out-of-bounds read. The greatest risk from this flaw is to application availability...
JLSEC-2026-133
Due to a failure in validating the number of scanline samples of a OpenEXR file containing deep scanline data, Academy Software Foundation OpenEX image parsing library version 3.2.1 and prior is susceptible to a heap-based buffer overflow vulnerability. This issue was resolved as of versions v3.2...
JLSEC-2026-126 In libavif before 1.3.0, avifImageRGBToYUV in reformat.c has integer overflows in multiplications...
In libavif before 1.3.0, avifImageRGBToYUV in reformat.c has integer overflows in multiplications involving rgbRowBytes, yRowBytes, uRowBytes, and vRowBytes...
JLSEC-2026-121 Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard...
Beginning in v1.4.1 and prior to v1.4.9, due to an incomplete fix for CVE-2021-24031, the Zstandard command-line utility created output files with default permissions and restricted those permissions immediately afterwards. Output files could therefore momentarily be readable or writable to...
JLSEC-2026-110 Deno.env.toObject() ignores the variables listed in --deny-env and returns all environment variables
Summary The Deno.env.toObject method ignores any variables listed in the --deny-env option of the deno run command. When looking at the documentation of the --deny-env option this might lead to a false impression that variables listed in the option are impossible to read. PoC export...
JLSEC-2026-105 Deno's `deno_runtime` vulnerable to interactive permission prompt spoofing via improper ANSI stripping
Summary A maliciously crafted permission request can show the spoofed permission prompt by inserting a broken ANSI escape sequence into the request contents. Details In the patch for CVE-2023-28446, Deno is stripping any ANSI escape sequences from the permission prompt, but permissions given to t...
JLSEC-2026-88
An issue in the pdfseparate utility of freedesktop poppler v25.04.0 allows attackers to cause an infinite recursion via supplying a crafted PDF file. This can lead to a Denial of Service DoS...
JLSEC-2026-73 In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation...
In sshd in OpenSSH before 10.0, the DisableForwarding directive does not adhere to the documentation stating that it disables X11 and agent forwarding...
JLSEC-2026-48
Client use of server error message in PostgreSQL allows a server not trusted under current SSL or GSS settings to furnish arbitrary non-NUL bytes to the libpq application. For example, a man-in-the-middle attacker could send a long error message that a human or screen-scraper user of psql mistake...
JLSEC-2026-37
A flaw was found in PostgreSQL. There is an issue with incomplete efforts to operate safely when a privileged user is maintaining another user's objects. The Autovacuum, REINDEX, CREATE INDEX, REFRESH MATERIALIZED VIEW, CLUSTER, and pgamcheck commands activated relevant protections too late or no...
JLSEC-2026-4 nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C
nghttp2 is an implementation of the Hypertext Transfer Protocol version 2 in C. The nghttp2 library prior to version 1.61.0 keeps reading the unbounded number of HTTP/2 CONTINUATION frames even after a stream is reset to keep HPACK context in sync. This causes excessive CPU usage to decode HPACK...
JLSEC-2025-324 A flaw was found in rsync which could be triggered when rsync compares file checksums
A flaw was found in rsync which could be triggered when rsync compares file checksums. This flaw allows an attacker to manipulate the checksum length s2length to cause a comparison between a checksum and uninitialized memory and leak one byte of uninitialized stack data at a time...
JLSEC-2025-255 A flaw was found in libtiff
A flaw was found in libtiff. Due to a memory allocation failure in tifread.c, a crafted TIFF file can lead to an abort, resulting in denial of service...
JLSEC-2025-311 An issue was discovered in function TIFFReadDirectory libtiff before 4.4.0 allows attackers to cause...
An issue was discovered in function TIFFReadDirectory libtiff before 4.4.0 allows attackers to cause a denial of service via crafted TIFF file...
JLSEC-2025-298 LibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in `tools/tiffcrop.c:3609`, allowing attackers...
LibTIFF 4.4.0 has an out-of-bounds write in tiffcrop in tools/tiffcrop.c:3609, allowing attackers to cause a denial-of-service via a crafted tiff file. For users that compile libtiff from sources, the fix is available with commit 33aee127...
JLSEC-2025-223 An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2
An issue was discovered in Mbed TLS 2.x before 2.28.7 and 3.x before 3.5.2. There was a timing side channel in RSA private operations. This side channel could be sufficient for a local attacker to recover the plaintext. It requires the attacker to send a large number of messages for decryption, a...