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CVE record · CVE-2026-105242

Apache log4net: Request validation failure drops the event in the aspnet-request converter

CVSS 5.3 MediumEPSS 0.0082 · 57th percentile

Published by the CVE Program (CNA: apache) at 6 Oct 2026, 19:50 UTC. agentprime has not analysed this yet, so whether it affects any app is not known. This CVE names a vendor and product rather than a package, so the lockfile check doesn’t match it.

Affected products, as the CNA wrote them
VendorProductVersions
Apache Software Foundation Apache log4net Package name: log4net https://nuget.org/packages pkg:nuget/log4net
  • affected 1.2.11 to before 3.5.0 semver
Other versions: unaffected
Apache Software Foundation Apache log4net Package name: log4net https://nuget.org/packages pkg:nuget/log4net
  • affected 243f1e9f3ee235955bade4b4fe664a903378719a to before 145203420c579a703008b4b723b6a080757f4964 git
Other versions: unaffected
Identifiers
CVE-2026-105242
CNA
apache
Weakness (CWE)
CWE-755
Tags
Published
6 Oct 2026
Updated
7 Oct 2026

Not analysed yet

We haven’t published our own analysis of this CVE. If a person reviews it, this page will say what’s affected and what has to be true for it to matter.

Severity and exploitation

ScoreRatingCVSSVectorSource
5.3 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CNA (apache)
  • CISA KEV Not listed.
  • EPSS 0.0082, the 57th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the CVE Program, published 6 Oct 2026. New records show when each source confirmed them.

Sources

References from the CNA

Facts on this page come from the CVE List as the CNA published them, with CVSS from the sources named above, CISA KEV and FIRST EPSS. Vendors, products and versions are shown as the CNA wrote them. We don’t reproduce the CVE’s description.