Vulnerability-Lookup

CVE-2026-49331 (GCVE-0-2026-49331)

Vulnerability from cvelistv5 – Published: 2026-08-05 14:40 – Updated: 2026-08-06 14:20

Title

Openshift/oauth-proxy: openshift/oauth-proxy: unauthenticated identity header injection on whitelisted paths

Summary

A flaw was found in openshift/oauth-proxy. On paths configured to bypass authentication (skip-auth-regex), the proxy forwards client-supplied identity headers (X-Forwarded-User, X-Forwarded-Email, X-Forwarded-Access-Token) to the upstream application without stripping them. An unauthenticated attacker can inject forged identity headers on whitelisted paths.

Severity

6.5 (Medium)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-06 14:20 UTC

CWE

CWE-345 - Insufficient Verification of Data Authenticity

Assigner

redhat

References

2 references

URL	Tags
https://access.redhat.com/security/cve/CVE-2026-49331	vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2483252	issue-trackingx_refsource_REDHAT

Impacted products

1 product

Vendor	Product	Version
Red Hat	Red Hat OpenShift Container Platform 4	cpe:/a:redhat:openshift:4

Date Public

2026-08-05 14:12

Credits

This issue was discovered by Jeremy Choi (Red Hat).

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2026-49331

Vulnerability from fkie_nvd - Published: 2026-08-05 16:16 - Updated: 2026-08-06 15:37

Severity

6.5 (Medium) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Summary

References

	URL	Tags
	secalert@redhat.com	https://access.redhat.com/security/cve/CVE-2026-49331
	secalert@redhat.com	https://bugzilla.redhat.com/show_bug.cgi?id=2483252

Impacted products

	Vendor	Product	Version

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
          "cpes": [
            "cpe:/a:redhat:openshift:4"
          ],
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          "packageName": "openshift4/ose-oauth-proxy",
          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
        },
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          ],
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          "product": "Red Hat OpenShift Container Platform 4",
          "vendor": "Red Hat"
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    }
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    }
  ],
  "id": "CVE-2026-49331",
  "lastModified": "2026-08-06T15:37:22.093",
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GHSA-6CHJ-7H9J-X3P6

Vulnerability from github – Published: 2026-08-05 18:31 – Updated: 2026-08-05 18:31

Details

Severity

6.5 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Show details on source website

JSON

To clipboard

{
  "affected": [],
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    "CVE-2026-49331"
  ],
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      "CWE-345"
    ],
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  "id": "GHSA-6chj-7h9j-x3p6",
  "modified": "2026-08-05T18:31:36Z",
  "published": "2026-08-05T18:31:36Z",
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      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-49331"
    },
    {
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      "url": "https://access.redhat.com/security/cve/CVE-2026-49331"
    },
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      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2483252"
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  "severity": [
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      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N",
      "type": "CVSS_V3"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.

Action not permitted

CVE-2026-49331 (GCVE-0-2026-49331)

FKIE_CVE-2026-49331

GHSA-6CHJ-7H9J-X3P6

Tags

Sightings

Nomenclature