The integrity check feature in OpenPGP, when handling a message that was encrypted using…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- — Not recorded in CVSS 2.0
- Attack complexity
- Low
- Impact type
- Information disclosure
- Confidentiality · integrity · availability
- Partial · None · None
- Fix status
- No fix listed
Attack profile from CVSS 2.0 · NVD. Fix status from CNA. Impact type from CWE-326.
Summary
The integrity check feature in OpenPGP, when handling a message that was encrypted using cipher feedback (CFB) mode, allows remote attackers to recover part of the plaintext via a chosen-ciphertext attack when the first 2 bytes of a message block are known, and an oracle or other mechanism is available to determine whether an integrity check failed.
Why it matters now
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2005-0366
- 2026-10-03 Alias added: GHSA-gfxg-882h-6vf5
References
More Gnupg vulnerabilities
- TI-2022-03243 Integer overflow in libksba CVSS 3.1CRITICAL 9.8
- TI-2025-42429 Out-of-bounds write in GnuPG CVSS 3.1HIGH 7.8
- TI-2025-42428 Improper signature verification in GnuPG CVSS 3.1MEDIUM 5.9
- TI-2008-01464 GnuPG (gpg) 1.4.8 and 2.0.8 allows remote attackers to cause a denial of service (crash)… CVSS 2.0HIGH 9.3
- TI-2026-20067 Stack-based buffer overflow in GnuPG CVSS 3.1CRITICAL 9.8
- TI-2018-08614 mainproc.c in GnuPG before 2.2.8 mishandles the original filename during decryption and… CVSS 3.1HIGH 7.5
Sources
- CVE-2005-0366 · CVE Program
- CVE-2005-0366 · NVD
- FIRST EPSS
- GHSA-gfxg-882h-6vf5 · GitHub Advisory Database · CC BY 4.0
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