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CVE record · CVE-2026-49329

Openshift/oauth-server: openshift/oauth-server: quadratic-time dos via accept-language header underscore bypass on unauthenticated login endpoints

CVSS 7.5 HighEPSS 0.0072 · 54th percentile

Published by the CVE Program (CNA: redhat) at 1 Sept 2026, 15:30 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
Red Hat Red Hat OpenShift Container Platform 4.14 Package name: openshift4/ose-oauth-server-rhel8 https://catalog.redhat.com/software/containers/
  • unaffected 1791839120 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.15 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1791598539 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.16 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1792883889 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.18 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1790882323 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.19 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1790611633 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.20 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1790702087 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.21 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1790707106 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 4.22 Package name: openshift4/ose-oauth-server-rhel9 https://catalog.redhat.com/software/containers/
  • unaffected 1790713150 to before * rpm
Other versions: affected
Red Hat Red Hat OpenShift Container Platform 5 Package name: openshift5/ose-oauth-server-rhel9 https://access.redhat.com/downloads/content/package-browser/ No versions given Other versions: unaffected
Identifiers
CVE-2026-49329
CNA
redhat
Weakness (CWE)
CWE-407
Tags
Published
1 Sept 2026
Updated
30 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
7.5 High 3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CNA (redhat)
  • CISA KEV Not listed.
  • EPSS 0.0072, the 54th 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 1 Sept 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.