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🛡️ CVE-2026-56373 on Debian 13 (Root.io) — imagemagick

🟡 CVSS 5.0 — Medium ✅ No Known Exploit OSV
5.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-56373 in imagemagick - Patched by Root

Root has patched CVE-2026-56373 in the imagemagick package for Root:Debian:13. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-56373 as tracked by Debian 13 (Root.io), for the package imagemagick. The fix is available in version 8:7.1.1.43+dfsg1-1+deb13u11.aikido.36; earlier versions remain affected.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is high, 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 none, integrity none, availability low. (rating taken from the base CVE record.)

CVSS metrics in full

The score comes from this vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: High — the attacker first has to win a race, learn a secret or otherwise prepare the target.
  • Privileges required: None — an unauthenticated stranger can try it.
  • User interaction: None — nobody has to be tricked into anything.
  • Scope: Unchanged — the damage stays inside the vulnerable component.
  • Confidentiality impact: None.
  • Integrity impact: None.
  • Availability impact: Low — limited, and the attacker does not choose what is affected.

Weakness class

ROOT-OS-DEBIAN-13-CVE-2026-56373 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-DEBIAN-13-CVE-2026-56373 is recorded against 2 packages.

  • imagemagick (fixed in 8:7.1.1.43+dfsg1-1+deb13u11.aikido.36)
  • rootio-imagemagick (fixed in 8:7.1.1.43+dfsg1-1+deb13u11.aikido.36)

Timeline and source

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

Other advisories for this package

imagemagick has other advisories on record. If you are patching this one, these are worth checking on the same host:

Same weakness in other software

These advisories are the same class of weakness (CWE-416: Use After Free) in other software:

Details

Severity MEDIUM
CVSS Score 5.0
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
imagemagick 8:7.1.1.43+dfsg1-1+deb13u11.aikido.36
rootio-imagemagick 8:7.1.1.43+dfsg1-1+deb13u11.aikido.36

References

N/A

Similar Threats

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