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OAuth2 Proxy has an Authentication Bypass via X-Forwarded-Uri Header Spoofing

cve-program · CVE-2026-40575

Published

oauth2-proxy

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "oauth2-proxy",
                    "product": "oauth2-proxy",
                    "versions": [
                        {
                            "version": ">= 7.5.0, < 7.15.2",
                            "status": "affected"
                        }
                    ]
                }

Original source record · Cite this exact observation · Complete original publisher JSON

cve-program · CVE-2026-76835

Published

oauth2-proxy

Vendor product

Original vendor version evidence · not evaluated as a NuGet range
{
                    "vendor": "oauth2-proxy",
                    "product": "oauth2-proxy",
                    "defaultStatus": "unaffected",
                    "versions": [
                        {
                            "version": "7.15.2",
                            "lessThanOrEqual": "7.15.4",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ],
                    "repo": "https://github.com/oauth2-proxy/oauth2-proxy",
                    "packageURL": "pkg:golang/github.com/oauth2-proxy/oauth2-proxy/v7"
                }

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-24557

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Apr 21, 2026, 11:20:30 PM

dateUpdated: Jul 15, 2026, 1:00:45 AM

1 related source bulletins · separate from aliases

RHSA-2026:58471: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-40575

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

euvd · EUVD-2026-65061

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Aug 24, 2026, 5:55:39 PM

dateUpdated: Oct 8, 2026, 3:25:05 PM

1 related source bulletins · separate from aliases

RHSA-2026:74536: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-56851 · CVE-2026-76835

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-40575

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Modified

Weakness classifications: CWE-290

Original publisher date fields

published: 2026-04-22T00:16:27.817

lastModified: 2026-07-15T02:21:07.520

1 source CPE criteria · context only
  • cpe:2.3:a:oauth2_proxy_project:oauth2_proxy:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

nvd · CVE-2026-76835

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Deferred

Weakness classifications: CWE-290

Original publisher date fields

published: 2026-08-24T18:17:21.570

lastModified: 2026-10-13T09:10:00.323

No normalized affected-package data is projected for this source revision. The original publisher record may contain additional product and version evidence; this does not establish that a package is unaffected.

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GHSA-7x63-xv5r-3p2x

Published

github.com/oauth2-proxy/oauth2-proxy/v7

Go

SEMVER · introduced 7.5.0 → fixed 7.15.2

Original source record · Cite this exact observation · Complete original publisher JSON

osv · GO-2026-5236

Published

github.com/oauth2-proxy/oauth2-proxy

Go

SEMVER · introduced 0

github.com/oauth2-proxy/oauth2-proxy/v7

Go

SEMVER · introduced 7.5.0 → fixed 7.15.2

Original source record · Cite this exact observation · Complete original publisher JSON

ChangeIntel

An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 10 Nov 09:28 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current