ALPINE-CVE-2026-5500

Source
https://security.alpinelinux.org/vuln/CVE-2026-5500
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-5500.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-5500
Upstream
Published
2026-04-10T04:17:17Z
Modified
2026-11-03T06:32:58Z
Severity
  • 5.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

wolfSSL's wc_PKCS7_DecodeAuthEnvelopedData() does not properly sanitize the AES-GCM authentication tag length received and has no lower bounds check. A man-in-the-middle can therefore truncate the mac field from 16 bytes to 1 byte, reducing the tag check from 2⁻¹²⁸ to 2⁻⁸.

References

Affected packages

Alpine:v3.23 / wolfssl

Package

Name
wolfssl
Purl
pkg:apk/alpine/wolfssl?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.1-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-5500.json"

Alpine:v3.24 / wolfssl

Package

Name
wolfssl
Purl
pkg:apk/alpine/wolfssl?arch=source

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
5.9.1-r0

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-5500.json"