JLSEC-2026-694 OCSP CertID serial-number length-confusion in `wolfSSL_OCSP_resp_find_status` allows a same-issuer...

OCSP CertID serial-number length-confusion in wolfSSLOCSPrespfindstatus allows a same-issuer SingleResponse whose serial is a prefix of the target serial to be reported as the revocation status of a different certificate. The lookup compared serial-number bytes without first requiring the two...

JLSEC-2026-723 Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion

Heap buffer overflow in CertFromX509 via AuthorityKeyIdentifier size confusion. A heap buffer overflow occurs when converting an X.509 certificate internally due to incorrect size handling of the AuthorityKeyIdentifier extension...

JLSEC-2026-646 When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption...

When decoding an OpenEXR file that uses DWAA or DWAB compression, there's an implicit assumption that all image channels have the same pixel type and size, and that if there are four channels, the first four are "B", "G", "R" and "A". The channel parsing code can be found in decodeheader. The...

JLSEC-2026-620 WebSocket reader data race in auto-PONG/CLOSE-echo handling in HTTP.jl

Description The WebSocket reader task processed incoming frames by calling wsonincomingdata! without holding ws.sendlock. That function is not a pure parser: its auto-PONG and CLOSE-echo paths push! onto the shared ws.codec.outgoingframes vector, while application send/ping/pong/close paths mutat...

JLSEC-2026-604

Use of inherently dangerous function PQfn..., resultisint=0, ... in PostgreSQL libpq loexport, loread, lolseek64, and lotell64 functions allows the server superuser to overwrite a client stack buffer with an arbitrarily-large response. Like gets, PQfn..., resultisint=0, ... stores arbitrary-lengt...

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-2026-516

A flaw was found in the ZeroMQ server in versions before 4.3.3. This flaw allows a malicious client to cause a stack buffer overflow on the server by sending crafted topic subscription requests and then unsubscribing. The highest threat from this vulnerability is to confidentiality, integrity, as...

JLSEC-2026-512

A directory traversal problem in the URL decoder of librsvg before 2.56.3 could be used by local or remote attackers to disclose files on the local filesystem outside of the expected area, as demonstrated by href=".?../../../../../../../../../../etc/passwd" in an xi:include element...

JLSEC-2026-494 WPG in GraphicsMagick before 1.3.46 mishandles palette buffer allocation.

ReadWPGImage in WPG in GraphicsMagick before 1.3.46 mishandles palette buffer allocation, resulting in out-of-bounds access to heap memory in ReadBlob...

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-2026-475

A vulnerability was found in libX11 due to an integer overflow within the XCreateImage function. This flaw allows a local user to trigger an integer overflow and execute arbitrary code with elevated privileges...

JLSEC-2026-474

A vulnerability was found in libX11 due to an infinite loop within the PutSubImage function. This flaw allows a local user to consume all available system resources and cause a denial of service condition...

JLSEC-2026-467 Mbed TLS serialized session data is not cryptographically protected

An issue was discovered in Mbed TLS versions from 2.19.0 up to 3.6.5, Mbed TLS 4.0.0. Insufficient protection of serialized SSL context or session structures allows an attacker who can modify the serialized structures to induce memory corruption, leading to arbitrary code execution. This is cause...

JLSEC-2026-464 Mbed TLS might use cloned PSA random generator states

Mbed TLS before 3.6.6 and TF-PSA-Crypto before 1.1.0 misuse seeds in a Pseudo-Random Number Generator PRNG...

JLSEC-2026-466 Mbed TLS peer can force the FFDH shared secret into a small set of values

An issue was discovered in Mbed TLS 3.5.x and 3.6.x through 3.6.5 and TF-PSA-Crypto 1.0. There is a lack of contributory behavior in FFDH due to improper input validation. Using finite-field Diffie-Hellman, the other party can force the shared secret into a small set of values lack of contributor...

JLSEC-2026-447

Buffer Overflow vulnerability in fmtentry function in progs/dumpentry.c:1100 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command...

JLSEC-2026-448

Buffer Overflow vulnerability in fmtentry function in progs/dumpentry.c:1116 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command...

JLSEC-2026-415 libcurl skips the certificate verification for a QUIC connection under certain conditions, when...

libcurl skips the certificate verification for a QUIC connection under certain conditions, when built to use wolfSSL. If told to use an unknown/bad cipher or curve, the error path accidentally skips the verification and returns OK, thus ignoring any certificate problems...

JLSEC-2026-410

An information disclosure vulnerability exists in curl v8.1.0 when doing HTTPS transfers, libcurl might erroneously use the read callback CURLOPTREADFUNCTION to ask for data to send, even when the CURLOPTPOSTFIELDS option has been set, if the same handle previously wasused to issue a PUT request...

JLSEC-2026-374

VP9 in libvpx before 1.13.1 mishandles widths, leading to a crash related to encoding...

JLSEC-2026-336

A vulnerability was found in HDF5 up to 1.14.6 and classified as problematic. This issue affects the function H5Ocachechkserialize of the file src/H5Ocache.c. The manipulation leads to null pointer dereference. An attack has to be approached locally. The exploit has been disclosed to the public a...

JLSEC-2026-335

A vulnerability has been found in HDF5 up to 1.14.6 and classified as problematic. This vulnerability affects the function H5MMrealloc of the file src/H5MM.c. The manipulation of the argument mem leads to double free. The attack needs to be approached locally. The exploit has been disclosed to th...

JLSEC-2026-185

In GNU tar before 1.35, mishandled extension attributes in a PAX archive can lead to an application crash in xheader.c...

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-2026-84

A flaw was found in the Poppler's Pdfinfo utility. This issue occurs when using -dests parameter with pdfinfo utility. By using certain malformed input files, an attacker could cause the utility to crash, leading to a denial of service...

JLSEC-2026-54

Missing validation of type of input in PostgreSQL intarray extension selectivity estimator function allows an object creator to execute arbitrary code as the operating system user running the database. Versions before PostgreSQL 18.2, 17.8, 16.12, 15.16, and 14.21 are affected...

JLSEC-2026-20

Hyperium Hyper before 0.14.19 does not allow for customization of the maxheaderlistsize method in the H2 third-party software, allowing attackers to perform HTTP2 attacks...

JLSEC-2025-274 Divide By Zero error in tiffcrop in libtiff 4.4.0 allows attackers to cause a denial-of-service via...

Divide By Zero error in tiffcrop in libtiff 4.4.0 allows 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 f3a5e010...

JLSEC-2025-306 loadImage() in `tools/tiffcrop.c` in LibTIFF through 4.5.0 has a heap-based use after free via a...

loadImage in tools/tiffcrop.c in LibTIFF through 4.5.0 has a heap-based use after free via a crafted TIFF image...

JLSEC-2025-204 An issue was discovered in Arm Mbed TLS before 2.23.0

An issue was discovered in Arm Mbed TLS before 2.23.0. Because of a side channel in modular exponentiation, an RSA private key used in a secure enclave could be disclosed...

JLSEC-2025-200 Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information (an RSA private key) by...

Arm Mbed TLS before 2.16.5 allows attackers to obtain sensitive information an RSA private key by measuring cache usage during an import...

JLSEC-2025-191 A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support

A flaw was found in the util-linux chfn and chsh utilities when compiled with Readline support. The Readline library uses an "INPUTRC" environment variable to get a path to the library config file. When the library cannot parse the specified file, it prints an error message containing data from t...

JLSEC-2025-119 An integer overflow vulnerability was found in FFmpeg versions before 4.4.2 and before 5.0.1 in...

An integer overflow vulnerability was found in FFmpeg versions before 4.4.2 and before 5.0.1 in g729parse in llibavcodec/g729parser.c when processing a specially crafted file...

JLSEC-2025-146 A flaw was found in FFmpeg's HLS demuxer

A flaw was found in FFmpeg's HLS demuxer. This vulnerability allows bypassing unsafe file extension checks and triggering arbitrary demuxers via base64-encoded data URIs appended with specific file extensions...

JLSEC-2025-93 A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser

A vulnerability was found in the Libksba library due to an integer overflow within the CRL parser. The vulnerability can be exploited remotely for code execution on the target system by passing specially crafted data to the application, for example, a malicious S/MIME attachment...

JLSEC-2025-58 In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD...

In libexpat through 2.4.9, there is a use-after free caused by overeager destruction of a shared DTD in XMLExternalEntityParserCreate in out-of-memory situations...

JLSEC-2025-32 A double free vulnerability exists in libcurl <8.0.0 when sharing HSTS data between separate...

A double free vulnerability exists in libcurl 8.0.0 when sharing HSTS data between separate "handles". This sharing was introduced without considerations for do this sharing across separate threads but there was no indication of this fact in the documentation. Due to missing mutexes or thread...

JLSEC-2025-20 An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before...

An issue was discovered in D-Bus before 1.12.24, 1.13.x and 1.14.x before 1.14.4, and 1.15.x before 1.15.2. An authenticated attacker can cause dbus-daemon and other programs that use libdbus to crash when receiving a message where an array length is inconsistent with the size of the element type...

JLSEC-2026-1352 Wasmtime WASI implementations are vulnerable to guest-controlled resource exhaustion

Impact Wasmtime's implementation of WASI host interfaces are susceptible to guest-controlled resource exhaustion on the host. Wasmtime did not appropriately place limits on resource allocations requested by the guests. This serves as a Denial of Service vector where a guest can induce a range of...

JLSEC-2026-1349 Wasmtime CLI is vulnerable to host panic through its fd_renumber function

Summary A bug in Wasmtime's implementation of the WASIp1 set of import functions can lead to a WebAssembly guest inducing a panic in the host embedder. The specific bug is triggered by calling pathopen after calling fdrenumber with either: - two equal argument values - second argument being equal...

JLSEC-2026-1356 Wasmtime has a possible panic when lifting `flags` component value

Impact Wasmtime contains a possible panic which can happen when a flags-typed component model value is lifted with the Val type. If bits are set outside of the set of flags the component model specifies that these bits should be ignored but Wasmtime will panic when this value is lifted. This pani...

JLSEC-2026-1297

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 xlsparseWorkBook function in xls.c:1015...

JLSEC-2026-1237

A flaw was identified in the RelaxNG parser of libxml2 related to how external schema inclusions are handled. The parser does not enforce a limit on inclusion depth when resolving nested directives. Specially crafted or overly complex schemas can cause excessive recursion during parsing. This may...

JLSEC-2026-1205 libcurl might in some circumstances reuse the wrong connection for SMB(S) transfers. libcurl...

libcurl might in some circumstances reuse the wrong connection for SMBS transfers. 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 criteria must be met. Due to a logical error in the...

JLSEC-2026-1191 FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory...

FFmpeg versions from 0.5 up to, but not including, 9.0 contain an uninitialized heap memory disclosure vulnerability in the native TIFF decoder in libavcodec/tiff.c. An attacker who can cause FFmpeg to decode a crafted TIFF file can supply a valid Deflate-compressed strip that terminates...

JLSEC-2026-1183 FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption...

FFmpeg through 8.1.2, fixed in commit 5d7112c, contains an uncontrolled resource consumption vulnerability in the IAMF demuxer that allows an unauthenticated attacker to cause multi-gigabyte memory allocation from a 17-byte input file by supplying a crafted countlabel field. The mixpresentationob...

JLSEC-2026-1149

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, an authenticated MQTT client could subscribe to the internal $MQTT.deliver.pubrel subject family, bypassing configured subscribe permissions and exposing MQTT QoS2 protoc...

JLSEC-2026-1093 A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function...

A vulnerability was identified in WebAssembly Binaryen up to 125. This affects the function IRBuilder::makeLocalGet/IRBuilder::makeLocalSet/IRBuilder::makeLocalTee of the file src/wasm/wasm-ir-builder.cpp of the component IRBuilder. Such manipulation of the argument Index leads to null pointer...

JLSEC-2026-1043 ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex...

ImageMagick before 7.1.2-15 contains a heap-buffer-overflow read vulnerability in GetPixelIndex caused by OpenPixelCache updating image channel metadata before pixel cache memory allocation. Attackers can trigger memory and disk allocation failures to cause a heap-buffer-overflow read affecting a...

JLSEC-2026-953 ImageMagick's Security Policy Bypass through config/policy-secure.xml via "fd handler" leads to stdin/stdout access

ImageMagick is free and open-source software used for editing and manipulating digital images. The shipped "secure" security policy includes a rule intended to prevent reading/writing from standard streams. However, ImageMagick also supports fd: pseudo-filenames e.g., fd:0, fd:1. Prior to version...