🛡️ CVE-2026-8924 on Alpine — curl

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

Description

A flaw in curl’s cookie parsing logic allows a malicious HTTP server to set

'super cookies' that bypass the Public Suffix List check. This enables an

attacker-controlled origin to inject cookies that curl subsequently scopes and

transmits to unrelated third-party domains.

Distribution advisory

This page covers CVE-2026-8924 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 high, integrity high, availability none.

Affected software

ALPINE-CVE-2026-8924 is recorded against 1 package.

  • curl (from 7.46.0 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:H/I:H/A:N
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 7.46.0 8.21.0-r0

Exploit Protection

Are you running curl?

ALPINE-CVE-2026-8924 carries CVSS 9.1 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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