ALPINE-CVE-2026-27459

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Source
https://security.alpinelinux.org/vuln/CVE-2026-27459
Import Source
https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27459.json
JSON Data
https://api.osv.dev/v1/vulns/ALPINE-CVE-2026-27459
Upstream
Published
2026-03-18T00:16:19Z
Modified
2026-11-03T06:33:02Z
Severity
  • 9.8 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to set_cookie_generate_callback returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.

References

Affected packages

Alpine:v3.23 / py3-openssl

Package

Name
py3-openssl
Purl
pkg:apk/alpine/py3-openssl?arch=source

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27459.json"

Alpine:v3.24 / py3-openssl

Package

Name
py3-openssl
Purl
pkg:apk/alpine/py3-openssl?arch=source

Affected ranges

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

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/alpine/ALPINE-CVE-2026-27459.json"