MEDIUMVulnerability
CVE-2026-81703
openssl_encrypt versions before 1.4.9 fail to validate encryption status of embedded post-quantum private keys in file metadata. Attackers can craft files with unencrypted embedded PQC keys that decrypt under any password, bypassing authentication and producing attacker-chosen plaintext with false integrity verification.
Properties
- severity
- MEDIUM
- score
- 5.5
- epss_score
- 0.00156
- cve_id
- CVE-2026-81703
- vector
- CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:N
- published_at
- 2026-08-27T17:21:00.833
- last_modified
- 2026-09-01T18:11:14.783
- epss_percentile
- 0.05028
Related Entities (4)
ENRICHED_BY (1)
→[Source]FIRST EPSS
HAS_WEAKNESS (1)
→[Weakness]Improper Authentication
DESCRIBED_BY (1)
→[Source]NVD
AFFECTS_PRODUCT (1)
→[Product]
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