ALPINE-CVE-2026-34181

Advisory lineage Upstream: 1 Downstream: 0
Upstream
CVE-2026-34181
Published: 09 Jun 2026, 17:17
Last modified:08 Jul 2026, 04:31

Vulnerability Summary

Overall Risk (default)
medium
30/100
CVSS Score
7.4 HIGH
3.1 (osv_alpine)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

09 Jun 2026, 17:17
Published
Vulnerability first disclosed
08 Jul 2026, 04:31
Last Modified
Vulnerability information updated

Description

Issue Summary: The PKCS#12 file processing fails to perform sufficient input validation for files that use Password-Based Message Authentication Code 1 (PBMAC1) integrity mechanism allowing a certificate and private key forgery. Impact Summary: An attacker impersonating a user can cause a service reading PKCS#12 files to accept forged certificates and private keys with a 1 in 256 probability. If a service accepting PKCS#12 files is using passwords for authenticating the received files, the attacker can create unencrypted PKCS#12 files that use PBMAC1 authentication that specifies an HMAC key of only one byte, allowing them to craft a file that will be accepted with a 1 in 256 probability. That would then cause the service to accept a certificate and private key controlled by the attacker. The FIPS modules are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

CVSS Metrics

  • v3.1•HIGH•Score: 7.4CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Systems

  • alpine•openssl

    < 3.5.7-r0 | < 3.5.7-r0 | < 3.5.7-r0 | ≥ 3.4.0, < 3.5.7-r0 | ≥ 3.4.0, < 3.5.7-r0 | ≥ 3.4.0, < 3.5.7-r0

References (1)