CVE-2026-42327 rust-openssl: undefined behavior in X509Ref::ocsp_responders for certificates with non-UTF-8 OCSP URLs

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL does not enforce th...

CVE-2026-42327

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL does not enforce th...

CVE-2026-42327

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL does not enforce th...

Security Bulletin: Cargo in IBM Open SDK for Rust on AIX uses a vulnerable version of thin-vec (CVE-2026-6654)

Summary The cargo package manager in IBM Open SDK for Rust on AIX 1.90.0.1 and 1.92.0.1 uses the thin-vec-0.2.14 crate, which is vulnerable to a double free error. Vulnerability Details CVEID:CVE-2026-6654 DESCRIPTION: Double-Free / Use-After-Free UAF in the IntoIter::drop and ThinVec::clear...

EUVD-2026-30292

RMCP is an official Rust SDK for the Model Context Protocol. Prior to version 1.4.0, the rmcp crate's Streamable HTTP server transport crates/rmcp/src/transport/streamablehttpserver/ did not validate the incoming Host header. This allowed a malicious public website, via a DNS rebinding attack, to...

async-smtp-lite (>=0.1.0, <=0.1.2), br-email (>=0.1.2, <=1.0.9) +21 more potentially affected by CVE-2026-46428 via lettre (>=0.10.1, <=0.10.4)

lettre CARGO version =0.10.1, =0.1.0, =0.1.2, =1.6.4, =0.0.1, =0.1.0, =1.0.0, =0.1.0, =0.5.2, =0.0.1, =0.1.0, =3.0.0-alpha.8, =1.2.0, =1.4.3 - kagou 0.1.21 and more Source cves: CVE-2026-46428 Source advisory: OSV:RUSTSEC-2026-0141...

RUSTSEC-2026-0142 Double-free in `vmem` storage reachable from safe Rust (predecessor of `oneringbuf`)

mutringbuf is the archived predecessor of oneringbuf — the crate was renamed and the GitHub repository was archived on 2025-11-20. All released versions up to 1.0.0 carry the same vmem-feature double-free bug that affects oneringbuf, with the same code paths and the same reproduction shape. When...

Double-free in `vmem` storage reachable from safe Rust

When the vmem feature is enabled, VmemStorage::newBox and every public constructor that funnels through it — ConcurrentHeapRB::defaultcap, ConcurrentHeapRB::fromVec, From, etc. bit-copies the input buffer into a freshly mmap'd region with ptr::copynonoverlapping, then lets the source Box drop...

Kimsuky targets organizations with PebbleDash-based tools

Over the past few months, we have conducted an in-depth analysis of specific activity clusters of Kimsuky aka APT43, Ruby Sleet, Black Banshee, Sparkling Pisces, Velvet Chollima, and Springtail, a prolific Korean-speaking threat actor. Our research revealed notable tactical shifts throughout...

PT-2026-42962

mutringbuf is the archived predecessor of oneringbuf — the crate was renamed and the GitHub repository was archived on 2025-11-20. All released versions up to 1.0.0 carry the same vmem-feature double-free bug that affects oneringbuf, with the same code paths and the same reproduction shape. When...

CVE-2026-42327: Improper Input Validation

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.9.7 to before 0.10.79, X509Ref::ocspresponders returns OCSP responder URLs from a certificate's AIA extension as OpensslString, whose Deref wraps the raw bytes with str::fromutf8unchecked. OpenSSL does not enforce th...

Rust-openssl: Input validation vulnerability

rust-openssl is an open-source library in Rust that allows for interaction with the OpenSSL library. In versions 0.9.7 to 0.10.79 of rust-openssl, there was a vulnerability related to input validation errors. This vulnerability stemmed from X509Ref::ocspresponders returning the OCSP responder URL...

rust-openssl security vulnerabilities

rust-openssl is an open-source library designed for interacting with the OpenSSL library. There were security vulnerabilities in the version of rust-openssl from 0.10.0 to 0.10.79. These vulnerabilities stemmed from incorrect calculations of the output buffer size when using AES key wrap padding,...

CVE-2026-44662: Heap-based Buffer Overflow

rust-openssl provides OpenSSL bindings for the Rust programming language. From 0.10.0 to before 0.10.79, CipherCtxRef::cipherupdate, CipherCtxRef::cipherupdatevec, and symm::Crypter::update incorrectly sized output buffers when used with AES key-wrap-with-padding ciphers EVPaes128,192,256wrappad...

Amazon Linux 2 : rust, --advisory ALAS2-2026-3296 (ALAS-2026-3296)

The version of rust installed on the remote host is prior to 1.95.0-1. It is, therefore, affected by a vulnerability as referenced in the ALAS2-2026-3296 advisory. Double-Free / Use-After-Free UAF in the IntoIter::drop and ThinVec::clear functions in the thinvec crate. A panic in ptr::dropinplace...

Important: rust

Issue Overview: Double-Free / Use-After-Free UAF in the IntoIter::drop and ThinVec::clear functions in the thinvec crate. A panic in ptr::dropinplace skips setting the length to zero. CVE-2026-6654 Affected Packages: rust Note: This advisory is applicable to Amazon Linux 2 AL2 Core repository...

a1 (>=1.0.1, <=1.0.2), a1_notation (0.6.0) +435 more potentially affected by unknown CVE via rkyv (>=0.7.3, <=0.8.2)

rkyv CARGO version =0.7.3, =1.0.1, =0.1.0, =0.1.0, =0.0.1, =0.1.0, =0.1.0, =1.0.0, =0.1.0, =0.1.0, =0.6.0 - bosque 0.1.0 - brightswcatoms 0.4.0 and more Source cves: unknown CVE Source advisory: OSV:RUSTSEC-2026-0235...

abc-rs (>=0.2.2, <=0.2.4), acid-rs (>=1.1.0, <=1.1.1) +993 more potentially affected by unknown CVE via git2 (>=0.1.21, <=0.20.4)

git2 CARGO version =0.1.21, =0.2.2, =1.1.0, =0.0.1, =0.2.0, =0.3.0, =1.0.0, =0.1.0, =2.0.0-rc.1, =0.2.0, =0.1.0, =0.2.2 and more Source cves: unknown CVE Source advisory: OSV:RUSTSEC-2026-0184...

SUSE CVE-2026-43435

In the Linux kernel, the following vulnerability has been resolved: rustbinder: fix oneway spam detection The spam detection logic in TreeRange was executed before the current request was inserted into the tree. So the new request was not being factored in the spam calculation. Fix this by moving...

Important: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

An update for Red Hat Hardened Images RPMs is now available. This update includes the following RPMs: rust: cargo-1.95.0-5.hum1 aarch64, x8664 clippy-1.95.0-5.hum1 aarch64, x8664 rust-1.95.0-5.hum1 aarch64, x8664 rust-analyzer-1.95.0-5.hum1 aarch64, x8664 rust-debugger-common-1.95.0-5.hum1 noarch...