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Fencer Vulns
high 8.3

CVE-2026-115642 json

In OpenStack keystonemiddleware before 13.0.2, by supplying a custom X-Service-Token header in a request, anyone in possession of an access…

published 2026-10-30 10 d ago modified 2026-10-30 9 d ago also EUVD-2026-114191

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 43%
public exploits
0
none known

Summary

In OpenStack keystonemiddleware before 13.0.2, by supplying a custom X-Service-Token header in a request, anyone in possession of an access-restricted application credential may bypass those restrictions resulting in elevation of privileges.

Patch / fix

  • OpenStack keystonemiddleware 10.12.2, 12.0.1, 13.0.2
  • python-keystonemiddleware Debian 14 13.0.1-5

debian advisories DEBIAN-CVE-2026-115642

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-115642 updated cvss 6.3

keystonemiddleware: keystonemiddleware: application credential access_rules bypass via X-Service-Token header presence check

  • Red Hat OpenShift Container Platform 4 python3-keystonemiddleware, openshift4/ose-ironic-rhel9 Red Hat OpenShift Container Platform 5 openshift5/ose-ironic-rhel9 Red Hat OpenStack Platform 13 (Queens) python-keystonemiddleware, python2-keystonemiddleware Red Hat OpenStack Platform 16.2 python3-keystonemiddleware Red Hat OpenStack Platform 17.1 python3-keystonemiddleware Red Hat OpenStack Platform 18.0 python-keystonemiddleware
    affected: workaround, no fix available “No mitigation is currently available that meets Red Hat Product Security standards for a complete fix.”

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
10 d ago

Exploit prediction

0.51% chance of exploitation in the next 30 days, higher than 43% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L

Affected products

  • OpenStack keystonemiddleware

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.