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CVE-2026-89086 (GCVE-0-2026-89086)

Vulnerability from cvelistv5 – Published: 2026-09-10 19:52 – Updated: 2026-09-10 21:00
VLAI
Summary
In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.
Severity
9.1 (Critical)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N
SSVC
Exploitation: poc Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-10 20:40 UTC
CWE
  • CWE-347 - Improper Verification of Cryptographic Signature
Assigner
References
Impacted products
Vendor Product Version CPE status
OCaml jose Affected: 0 , < 0.11.0 (semver)
guessed Create a notification for this product.
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