CVE-2026-81680: Improper Verification of Cryptographic Signature in jahlives openssl_encrypt
Description
openssl_encrypt versions before 1.4.9 fail to authenticate recovery-slot presence in envelope-format encrypted files, allowing attackers to remove recovery slots without re-encrypting the payload. Attackers can modify the file header to delete recovery-slot fields and bypass authentication, silently removing recovery paths the owner deliberately added.
CVSS v4.0
Score 9.3critical
Affected software
jahlives
openssl_encrypt
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability in jahlives openssl_encrypt prior to version 1.4.9 involves improper verification of cryptographic signatures related to recovery-slot presence in envelope-format encrypted files. Attackers can manipulate the file header to delete recovery-slot fields, effectively removing recovery paths without triggering authentication failures or requiring re-encryption of the payload. This allows silent tampering with encrypted files' recovery mechanisms.
Potential Impact
Attackers can silently remove recovery slots from encrypted files, bypassing authentication checks. This compromises the integrity of recovery paths, potentially preventing legitimate recovery of encrypted data without detection. The vulnerability has a CVSS 4.0 score of 9.3, indicating critical severity with high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
A fix is available in jahlives openssl_encrypt version 1.4.9 and later. Users should upgrade to version 1.4.9 or above to remediate this vulnerability. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulnCheck
- Date Reserved
- 2026-08-27T11:11:30.933Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a906bb2acd9273b4983a191
Added to database: 08/27/2026, 16:54:10 UTC
Last enriched: 10/02/2026, 15:54:41 UTC
Last updated: 10/10/2026, 06:48:19 UTC
Views: 51
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