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🛡️ CVE-2026-34502 on Debian 11 (Root.io) — apr-util

🟠 CVSS 8.0 — High ✅ No Known Exploit OSV
8.0
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

CVE-2026-34502 in apr-util - Patched by Root

Root has patched CVE-2026-34502 in the apr-util package for Root:Debian:11. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-34502 as tracked by Debian 11 (Root.io), for the package apr-util. The fix is available in version 1.6.1-5+deb11u1.aikido.5; 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 none, integrity none, availability high. (rating taken from the base CVE record.)

CVSS metrics in full

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

  • Attack vector: Network — reachable from anywhere that can route to the service.
  • Attack complexity: Low — the attack works reliably, with no preparation.
  • 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: High — total loss, or loss the attacker controls.

Weakness class

ROOT-OS-DEBIAN-11-CVE-2026-34502 is classified as CWE-122: Heap-based Buffer Overflow. A write past the end of a heap allocation corrupts allocator metadata or neighbouring objects.

Affected software

ROOT-OS-DEBIAN-11-CVE-2026-34502 is recorded against 2 packages.

  • apr-util (fixed in 1.6.1-5+deb11u1.aikido.5)
  • rootio-apr-util (fixed in 1.6.1-5+deb11u1.aikido.5)

Timeline and source

Published on 20 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.

Other advisories for this package

apr-util 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-122: Heap-based Buffer Overflow) in other software:

Details

Severity HIGH
CVSS Score 8.0
CVSS Vector N/A
CWE N/A
Public Exploit ✅ No
Source OSV
Published 2026-08-20
Updated 2026-08-20
Modified 2026-08-20
Fix URL N/A

Affected Packages

Software From version Fixed in
apr-util — 1.6.1-5+deb11u1.aikido.5
rootio-apr-util — 1.6.1-5+deb11u1.aikido.5

References

N/A

Site Security Check

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ROOT-OS-DEBIAN-11-CVE-2026-34502 is rated CVSS 8.0 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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ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.

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