CVE-2026-5392 Affecting wolfssl package, versions <5.9.1-r0


Severity

Recommended
0.0
medium
0
10

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Threat Intelligence

EPSS
0.01% (4th percentile)

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  • Snyk IDSNYK-ALPINE323-WOLFSSL-17037489
  • published29 May 2026
  • disclosed10 Apr 2026

Introduced: 10 Apr 2026

CVE-2026-5392  (opens in a new tab)

How to fix?

Upgrade Alpine:3.23 wolfssl to version 5.9.1-r0 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream wolfssl package and not the wolfssl package as distributed by Alpine. See How to fix? for Alpine:3.23 relevant fixed versions and status.

Heap out-of-bounds read in PKCS7 parsing. A crafted PKCS7 message can trigger an OOB read on the heap. The missing bounds check is in the indefinite-length end-of-content verification loop in PKCS7_VerifySignedData().

CVSS Base Scores

version 3.1