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Advisory record · GHSA-gm62-rw4g-vrc4

Logback is vulnerable to an attacker mounting a Denial-Of-Service attack by sending poisoned data

CVSS 7.1 HighEPSS 0.0068 · 53rd percentile

Published by the GitHub Advisory Database at 4 Dec 2023, 09:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
ch.qos.logback:logback-coreMaven>=1.4.13, <1.4.14 || >=1.3.13, <1.3.14 || >=1.2.12, <1.2.131.4.14, 1.3.14, 1.2.13
Identifiers
GHSA-gm62-rw4g-vrc4 · CVE-2023-6481
Published
4 Dec 2023
Updated
10 Sept 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Logback-core versions 1.4.13, 1.3.13 and 1.2.12 are vulnerable to a serialization flaw in the receiver component. An attacker who can send data to the receiver can cause a denial of service. Upgrade to logback-core 1.4.14, 1.3.14 or 1.2.13, depending on the release line in use. The source gives few details about the attack conditions.

Written 2 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
7.1 High 3.1 CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H CNA (NCSC.ch)
  • CISA KEV Not listed.
  • EPSS 0.0068, the 53rd percentile, on 14 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:18 UTC First seen by agentprime
  2. 31 Oct 2026, 14:18 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.