JLSEC-2026-450

Buffer Overflow vulnerability in ncfindentry in tinfo/comphash.c:70 in ncurses 6.1 allows remote attackers to cause a denial of service via crafted command...

JLSEC-2026-374

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

JLSEC-2026-354

HDF5 is software for managing data. In 1.14.1-2 and earlier, a heap-use-after-free was found in the h5dump helper utility. An attacker who can supply a malicious h5 file can trigger a heap use-after-free. The freed object is referenced in a memmove call from H5Tconvstruct. The original object was...

JLSEC-2026-307

HDF5 Library through 1.14.3 contains a heap-based buffer over-read in H5HLfldeserialize in H5HLcache.c, resulting in the corruption of the instruction pointer, a different vulnerability than CVE-2024-32613...

JLSEC-2026-284

A flaw was found in libXpm. This issue occurs when parsing a file with a comment not closed; the end-of-file condition will not be detected, leading to an infinite loop and resulting in a Denial of Service in the application linked to the library...

JLSEC-2026-270 Issue summary: A type confusion vulnerability exists in the signature verification of signed PKCS#7...

Issue summary: A type confusion vulnerability exists in the signature verification of signed PKCS7 data where an ASN1TYPE union member is accessed without first validating the type, causing an invalid or NULL pointer dereference when processing malformed PKCS7 data. Impact summary: An application...

JLSEC-2026-198

nasm version 2.14.01rc5, 2.15 contains a Buffer Overflow vulnerability in asm/stdscan.c:130 that can result in Stack-overflow caused by triggering endless macro generation, crash the program. This attack appear to be exploitable via a crafted nasm input file...

JLSEC-2026-163

An integer underflow was discovered in OpenLDAP before 2.4.57 leading to slapd crashes in the Certificate Exact Assertion processing, resulting in denial of service schemainit.c serialNumberAndIssuerCheck...

JLSEC-2026-150

libexif through 0.6.25 has a flaw in decoding MakerNotes. If the exifmnotedatagetvalue function gets passed in a 0 size, the passed in-buffer would be overwritten due to an integer underflow...

JLSEC-2026-98 Deno's static imports inside dynamically imported modules do not adhere to permission checks

Impact Modules that are dynamically imported through import or new Worker might have been able to bypass network and file system permission checks when statically importing other modules. In Deno 1.5.x and 1.6.x only programs dynamically importing especially transitively untrusted code are...

JLSEC-2026-60

The PCRE2 library is a set of C functions that implement regular expression pattern matching. In version 10.45, a heap-buffer-overflow read vulnerability exists in the PCRE2 regular expression matching engine, specifically within the handling of the scs:... Scan SubString verb when combined with...

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-2026-7 LIBPNG is a reference library for use in applications that read, create, and manipulate PNG...

LIBPNG is a reference library for use in applications that read, create, and manipulate PNG Portable Network Graphics raster image files. From 1.6.51 to 1.6.53, there is a heap buffer over-read in the libpng simplified API function pngimagefinishread when processing interlaced 16-bit PNGs with...

JLSEC-2025-176 An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or...

An issue was discovered in open-mpi hwloc 2.1.0 allows attackers to cause a denial of service or other unspecified impacts via glibc-cpuset in topology-linux.c...

JLSEC-2025-3 Lack of validation for user-provided fields in GitForge.jl

Description There is a lack of input validation for user-provided values in certain functions. In the GitForge.getrepo function for GitHub, the user can provide any string for the owner and repo fields. These inputs are not validated or safely encoded and are sent directly to the server. Impact...

JLSEC-2026-1362 Wasmtime has data leakage between pooling allocator instances

Impact Wasmtime's implementation of its pooling allocator contains a bug where in certain configurations the contents of linear memory can be leaked from one instance to the next. The implementation of resetting the virtual memory permissions for linear memory used the wrong predicate to determin...

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-2026-1207 Using libcurl, when a custom `Host:` header is first set for an HTTP request and a second request...

Using libcurl, when a custom Host: header is first set for an HTTP request and a second request is subsequently done using the same easy handle but without the custom Host: header set, the second request would use stale information and pass on cookies meant for the first host in the second reques...

JLSEC-2026-1196 GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow...

GNU coreutils unexpand is vulnerable to a heap-based buffer overflow due to an integer overflow during buffer allocation when processing large tab stop -t values. The multiplication used to calculate the allocation size can wrap around, resulting in an undersized buffer. When processing crafted...

JLSEC-2026-1186 FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability...

FFmpeg through 8.1.2, fixed in commit b506faf, contains a heap out-of-bounds write vulnerability in the native PNG and APNG encoders that allows remote attackers to corrupt heap memory by supplying a crafted PNG image with a malicious eXIf chunk. Attackers can craft an eXIf chunk where multiple I...

JLSEC-2026-1097

libheif is a HEIF and AVIF file format decoder and encoder. The fix for CVE-2026-3949 commit b97c8b5, PR 1712 introduced an integer overflow in the very security check it added. The check itself can be bypassed, allowing a crafted HEIF file with a VVC track to trigger the same out-of-bounds heap...

JLSEC-2026-1021 ImageMagick: Heap Buffer Over-Read in distributed pixel cache server

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 cause a heap buffer over-read in the server process. This issue has been patched in versio...

JLSEC-2026-779

A malicious SCP server can send unexpected paths that could make the client application override local files outside of working directory. This could be misused to create malicious executable or configuration files and make the user execute them under specific consequences. This is the same issue...

JLSEC-2026-773

The bsonvalidate function may return early on specific inputs and incorrectly report success. This behavior could result in skipping validation for BSON data, allowing malformed or invalid UTF-8 sequences to bypass validation and be processed incorrectly. The issue may affect applications that re...

JLSEC-2026-735 Un-negotiated Raw Public Key (RFC 7250) accepted in place of an X.509 certificate, bypassing chain...

Un-negotiated Raw Public Key RFC 7250 accepted in place of an X.509 certificate, bypassing chain validation. A raw public key has no chain, so ParseCertRelative accepts it without performing any trust verification; it must therefore only be accepted when RPK was actually negotiated for that peer...

JLSEC-2026-706 Out-of-bounds read in ALPN parsing due to incomplete validation

Out-of-bounds read in ALPN parsing due to incomplete validation. wolfSSL 5.8.4 and earlier contained an out-of-bounds read in ALPN handling when built with ALPN enabled HAVEALPN / --enable-alpn. A crafted ALPN protocol list could trigger an out-of-bounds read, leading to a potential process crash...

JLSEC-2026-748 The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the...

The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating par...

JLSEC-2026-717

URI nameConstraints from constrained intermediate CAs are parsed but not enforced during certificate chain verification in wolfcrypt/src/asn.c. A compromised or malicious sub-CA could issue leaf certificates with URI SAN entries that violate the nameConstraints of the issuing CA, and wolfSSL woul...

JLSEC-2026-698 Missing SNI/ALPN binding on stateful (session-ID) resumption, which previously skipped the binding...

Missing SNI/ALPN binding on stateful session-ID resumption, which previously skipped the binding check performed for ticket-based resumption. A cached session could be resumed under a different SNI/ALPN than originally negotiated and, where client-authentication policy differs across virtual host...

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-2026-738 Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA

Chain intermediate CA:TRUE without keyCertSign accepted as a signing CA. Intermediate CA certificates are required to have the keyCertSign key usage when a Key Usage extension is present, but chain-supplied temporary CAs WOLFSSLTEMPCA added while building a certificate path were previously exempt...

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-2026-742 Partial-chain certificate verification may accept chains that terminate at a peer-supplied,...

Partial-chain certificate verification may accept chains that terminate at a peer-supplied, untrusted intermediate certificate rather than a trusted anchor. An attacker could present a chain that ends at an intermediate they control and have it accepted as valid. This affects the OpenSSL...

JLSEC-2026-744 Heap buffer overread in `wc_PKCS7_DecodeEnvelopedData` when parsing crafted PKCS7 EnvelopedData

Heap buffer overread in wcPKCS7DecodeEnvelopedData when parsing crafted PKCS7 EnvelopedData. This could theoretically be triggered by attacker-supplied data delivered via S/MIME or CMS...

JLSEC-2026-712

1-byte OOB heap read in wcPKCS7DecodeEnvelopedData via zero-length encrypted content. A vulnerability existed in wolfSSL 5.8.4 and earlier, where a 1-byte out-of-bounds heap read in wcPKCS7DecodeEnvelopedData could be triggered by a crafted CMS EnvelopedData message with zero-length encrypted...

JLSEC-2026-686 Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt

Integer Underflow Leads to Out-of-Bounds Access in XChaCha20-Poly1305 Decrypt. This issue is hit specifically with a call to the function wcXChaCha20Poly1305Decrypt which is not used with TLS connections, only from direct calls from an application...

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-2026-600

Missing authorization in PostgreSQL CREATE TYPE allows an object creator to hijack other queries that use searchpath to find user-defined types, including extension-defined types. That is to say, the victim will execute arbitrary SQL functions of the attacker's choice. Versions before PostgreSQL...

JLSEC-2026-579

In numbers.c in libxslt 1.1.33, a type holding grouping characters of an xsl:number instruction was too narrow and an invalid character/length combination could be passed to xsltNumberFormatDecimal, leading to a read of uninitialized stack data...

JLSEC-2026-575

A flaw was found in Nettle in versions before 3.7.2, where several Nettle signature verification functions GOST DSA, EDDSA & ECDSA result in the Elliptic Curve Cryptography point ECC multiply function being called with out-of-range scalers, possibly resulting in incorrect results. This flaw allow...

JLSEC-2026-569

OpenCV is an Open Source Computer Vision Library. Versions 4.10.0 and 4.11.0 have an uninitialized pointer variable on stack that may lead to arbitrary heap buffer write when reading crafted JPEG images. Version 4.12.0 fixes the vulnerability...

JLSEC-2026-563 In GnuPG through 2.4.8, `armor_filter` in g10/armor.c has two increments of an index variable where...

In GnuPG before 2.4.9, armorfilter in g10/armor.c has two increments of an index variable where one is intended, leading to an out-of-bounds write for crafted input. For ExtendedLTS, 2.2.51 and later are fixed versions...

JLSEC-2026-564 In GnuPG before 2.5.17, a crafted CMS (S/MIME) EnvelopedData message carrying an oversized wrapped...

In GnuPG before 2.5.17, a crafted CMS S/MIME EnvelopedData message carrying an oversized wrapped session key can cause a stack-based buffer overflow in gpg-agent during PKDECRYPT--kem=CMS handling. This can easily be leveraged for denial of service; however, there is also memory corruption that...

JLSEC-2026-544

opjt1clbldecodeprocessor in openjp2/t1.c in OpenJPEG 2.3.1 through 2020-01-28 has a heap-based buffer overflow in the qmfbid==1 case, a different issue than CVE-2020-6851...

JLSEC-2026-505

LibSass 3.6.1 has uncontrolled recursion in Sass::Eval::operatorSass::BinaryExpression in eval.cpp...

JLSEC-2026-499

Pandoc is a Haskell library for converting from one markup format to another, and a command-line tool that uses this library. Starting in version 1.13 and prior to version 3.1.4, Pandoc is susceptible to an arbitrary file write vulnerability, which can be triggered by providing a specially crafte...

JLSEC-2026-471

LookupCol.c in X.Org X through X11R7.7 and libX11 before 1.7.1 might allow remote attackers to execute arbitrary code. The libX11 XLookupColor request intended for server-side color lookup contains a flaw allowing a client to send color-name requests with a name longer than the maximum size allow...

JLSEC-2026-473

A vulnerability was found in libX11 due to a boundary condition within the XkbReadKeySyms function. This flaw allows a local user to trigger an out-of-bounds read error and read the contents of memory on the system...

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-2026-461 An integer overflow in the `tt_var_load_item_variation_store` function of the Freetype library in...

An integer overflow in the ttvarloaditemvariationstore function of the Freetype library in versions 2.13.2 and 2.13.3 may allow for an out of bounds read operation when parsing HVAR/VVAR/MVAR tables in OpenType variable fonts. This issue is fixed in version 2.14.2...