🛡️ CVE-2026-9080 on Alpine — curl

⚪ Unknown ✅ No Known Exploit OSV
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Calling curl_easy_pause() within the event-based CURLMOPT_SOCKETFUNCTION

callback triggers a use-after-free vulnerability, where libcurl attempts to

store a flag using a dangling struct pointer immediately after that pointer's

memory has been freed.

Distribution advisory

This page covers CVE-2026-9080 as tracked by Alpine, for the package curl. The fix is available in version 8.21.0-r0; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs no privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality low, integrity low, availability low.

Affected software

ALPINE-CVE-2026-9080 is recorded against 1 package.

  • curl (from 8.13.0 up to 8.21.0-r0)

Timeline and source

Published on 3 July 2026 and last revised on 8 July 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

References

security.alpinelinux.org (Advisory)

Details

Severity Unknown
CVSS Score N/A
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-07-03
Updated 2026-08-11
Modified 2026-07-08
Fix URL N/A

Affected Packages

Software From version Fixed in
curl 8.13.0 8.21.0-r0

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ALPINE-CVE-2026-9080 is rated CVSS 7.3 High. BotEraser scans your installation against known CVE records and tells you whether this vulnerability applies to the versions you actually run.

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