🛡️ CVE-2026-10536 on Alpine 3.21 (Root.io) — curl

🔴 CVSS 9.5 — Critical ✅ No Known Exploit OSV
9.5
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-10536 in curl - Patched by Root

Root has patched CVE-2026-10536 in the curl package for Root:Alpine:3.21. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-10536 as tracked by Alpine 3.21 (Root.io), for the package curl. The fix is available in version 8.14.1-r20073; 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 high. (rating taken from the base CVE record.)

Weakness class

ROOT-OS-ALPINE-321-CVE-2026-10536 is classified as CWE-416: Use After Free. Memory is used after being released, so its contents may already belong to something else.

Affected software

ROOT-OS-ALPINE-321-CVE-2026-10536 is recorded against 2 packages.

  • curl (fixed in 8.14.1-r20073)
  • rootio-curl (fixed in 8.14.1-r20073)

Timeline and source

Published on 11 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Details

Severity CRITICAL
CVSS Score 9.5
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-11
Updated 2026-08-20
Modified 2026-08-11
Fix URL N/A

Affected Packages

Software From version Fixed in
curl — 8.14.1-r20073
rootio-curl — 8.14.1-r20073

References

N/A

Exploit Protection

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ROOT-OS-ALPINE-321-CVE-2026-10536 carries CVSS 9.5 Critical rating. BotEraser checks your installation against this and other known CVE records, and blocks IPs associated with exploit activity.

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