OSEC-2026-06 TLS-client (with TLS 1.3) does insufficient certificate checks (missing KeyUsage and ExtendedKeyUsage validation)

The ocaml-TLS 1.3 client does not validate the KeyUsage and ExtendedKeyUsage extensions of the server certificate. This can lead to impersonation with a certificate issued to a client. Scenario Every employee at a major bank carries a smart card. The card holds a clientAuth certificate issued by...

PT-2026-42202

Name of the Vulnerable Software and Affected Versions OCaml-TLS versions prior to 2.1.0 Description The client implementation in OCaml-TLS fails to properly validate the KeyUsage and ExtendedKeyUsage EKU extensions of server certificates during TLS 1.3 handshakes. Specifically, the answer...

Advisory ROSA-SA-2026-3276

software: ocaml 4.12.0 WASP: ROSA-CHROME unaffected versions = ocaml-4.12.0-3 affected versions ocaml-4.12.0-3 CVE-ID: CVE-2026-28364 BDU-ID: None CVE-Crit: HIGH CVE-DESC.: An out-of-buffer read vulnerability in the Marshal deserialization function runtime/intern.c in OCaml allows a remote attack...

USN-8256-1 opam vulnerability

Andrew Nesbitt discovered that opam did not properly validate file destination paths in package install files. An attacker could use this issue to bypass sandbox protections and write files to arbitrary locations, possibly leading to arbitrary code execution...

MGASA-2026-0116 Updated opam packages fix security vulnerability

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory. CVE-2026-41082...

FreeBSD : devel/ocaml-opam -- CWE-24 Path Traversal: '../filedir' (9b5d6fbb-4893-11f1-82bf-3c7c3fba4204)

The version of FreeBSD installed on the remote host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the 9b5d6fbb-4893-11f1-82bf-3c7c3fba4204 advisory. https://github.com/ocaml/opam/releases/tag/2.5.1 reports: In OCaml opam before 2.5.1, a .install field...

oxenstored keeps quota related use counts across domain destruction

ISSUE DESCRIPTION When oxenstored is tearing a domain down, the node data is cleaned up but the usage counts are leaked. When the domain ID is eventually reused, the new domain can create fewer nodes before beeing deemed to be over quota. IMPACT Over an extended period of time, new domains will b...

[SECURITY] Fedora 44 Update: opam-2.5.1-1.fc44

Opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow...

[SECURITY] Fedora 43 Update: opam-2.5.1-1.fc43

Opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow...

[SECURITY] Fedora 42 Update: opam-2.5.1-1.fc42

Opam is a source-based package manager for OCaml. It supports multiple simultaneous compiler installations, flexible package constraints, and a Git-friendly development workflow...

virt:kvm_utils3 bug fix update

hivex 1.3.18-23 - Limit recursion in ri-records CVE-2021-3622 resolves: rhbz1976194 1.3.18-22.el8 - Resolves: bz2000225 Rebase virt:rhel module:stream based on AV-8.6 1.3.18-21 - Bounds check for block exceeding page length CVE-2021-3504 resolves: rhbz1950501 1.3.18 - Resolves: bz1810193 Upgrade...

Security update for ocaml-patch, opam (moderate)

openSUSE Security Update: Security update for ocaml-patch, opam Announcement ID: openSUSE-SU-2026:0145-1 Rating: moderate References: 1262281 Cross-References: CVE-2026-41082 CVSS scores: CVE-2026-41082 SUSE: 5.1 CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N Affected Products:...

SUSE CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

CVE-2026-41082

A flaw was found in OCaml opam. A malicious package containing a crafted .install field with directory traversal sequences allows an attacker to write files to arbitrary locations, potentially overwriting system files and causing arbitrary code execution. Mitigation To mitigate this vulnerability...

UBUNTU-CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

EUVD-2026-23288

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...

CVE-2026-41082

In OCaml opam before 2.5.1, a .install field containing a destination filepath can use ../ to reach a parent directory...