CVE-2026-75886: openshift/console · CWE-441
Source GCVE Database
Not known to be exploited · CVSS 7.2 High.
Data as of 7 Nov 2026, 23:24 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 26% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:NExploitation evidence
Disclosed: evidence found.
CVE published 23 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Red HatRed Hat OpenShift Container Platform 4.17 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift Container Platform 4.18 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift Container Platform 4.19 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift Container Platform 4.20 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift Container Platform 4.21 | Affected– | Fixed in– |
| Red HatRed Hat OpenShift Container Platform 4.22 | Affected– | Fixed in– |
AI-suggested
Red Hat has released OpenShift Container Platform 4.20.40 which includes a fix for this vulnerability. Users should upgrade to this version as per Red Hat's official upgrade documentation to fully mitigate the issue. No additional mitigations are specified beyond applying the official update.
Description
A vulnerability (CVE-2026-75886) was identified in the OpenShift Console component where a misconfiguration in the CatalogdHandler allows unauthenticated remote attackers to forward the openshift-session-token cookie improperly. This flaw enables attackers to send requests to the in-cluster catalogd service, potentially disclosing the internal operator-catalog index and providing a relay into the openshift-catalogd namespace. The issue has a CVSS 3.1 base score of 7.2, indicating high severity. Red Hat has released OpenShift Container Platform 4.20.40 with fixes addressing this and other issues. Users are advised to upgrade to this version to mitigate the vulnerability.
References
- nvd.nist.gov/vuln/detail/CVE-2026-75886 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-75886 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2517886 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71450 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71453 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71454 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:71447 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70587 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:70617 (opens in a new tab)