🛡️ CVE-2026-42496 on Debian 13 (Root.io) — perl

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

Description

CVE-2026-42496 in perl - Patched by Root

Root has patched CVE-2026-42496 in the perl package for Root:Debian:13. Multiple fixed versions available.

Distribution advisory

This page covers CVE-2026-42496 as tracked by Debian 13 (Root.io), for the package perl. The fix is available in version 5.40.1-6.root.io.4; 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.

Weakness class

ROOT-OS-DEBIAN-13-CVE-2026-42496 is classified as CWE-59: Link Following. The software follows symbolic or hard links without verifying their target, so a planted link can redirect an operation to a sensitive file.

Affected software

ROOT-OS-DEBIAN-13-CVE-2026-42496 is recorded against 2 packages.

  • perl (fixed in 5.40.1-6.root.io.4)
  • rootio-perl (fixed in 5.40.1-6.root.io.4)

Timeline and source

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

CVE-2026-42496 on other distributions

Each distribution ships its own build and its own fixed version. Pick the one you run:

Details

Severity CRITICAL
CVSS Score 9.5
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 2026-08-11
Updated 2026-08-20
Modified 2026-08-11
Fix URL N/A

Affected Packages

Software From version Fixed in
perl — 5.40.1-6.root.io.4
rootio-perl — 5.40.1-6.root.io.4

References

N/A

Similar Threats

Exploit Protection

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ROOT-OS-DEBIAN-13-CVE-2026-42496 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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