CVE-2026-55181
validatedZero produced an exploit or a check.GHSA-rg7c-vpfp-2w43 ↗EUVD-2026-90192 ↗
description
Tugtainer versions before 1.30.3 allow the OIDC login flow to be started despite OIDC being configured as disabled. An attacker able to reach the OIDC login endpoint can trigger the configured identity-provider authentication flow while that setting is off.
mitigation
Upgrade tugtainer to version 1.30.3 or later. Until upgraded, restrict access to the OIDC login endpoint if it is not required.
fixed in v1.30.3
outcome
Differential: the exploit fired on the vulnerable build and stayed silent on the patched one.
source signals
Public signals that triggered or updated the pipeline. These are inputs for the deltas above.
- 2026-06-11 01:47Z
- 2026-09-30 16:57Zcve_org: trigger signal, started the run
this entry in the feed
GET /api/v1/feed/CVE-2026-55181
{ "etk_id": "ETK-2026-133", "cve_id": "CVE-2026-55181", "display_id": "CVE-2026-55181", "ghsa_id": "GHSA-rg7c-vpfp-2w43", "euvd_id": "EUVD-2026-90192", "status": "published", "anchor_state": "anchored", "title": "OIDC disable-switch bypass in Tugtainer", "summary": "Tugtainer versions before 1.30.3 allow the OIDC login flow to be started despite OIDC being configured as disabled. An attacker able to reach the OIDC login endpoint can trigger the configured identity-provider authentication flow while that setting is off.", "mitigation": "Upgrade tugtainer to version 1.30.3 or later. Until upgraded, restrict access to the OIDC login endpoint if it is not required.", "vendor": "Quenary", "product": "tugtainer", "affected": [ { "affected_notes": [], "affected_ranges": [ "<= 1.30.2" ], "ecosystem": null, "fixed_versions": [ "v1.30.3" ], "package_name": "tugtainer", "purl": null } ], "cwes": [ 284 ], "cvss_score": 9.4, "cvss_src": "cna_vendor", "cvss_vector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L", "epss_score": 0.006, "epss_percentile": 0.4766, "epss_asof": "2026-10-20", "automation": "deterministic", "check": true, "check_confidence_basis": "differential", "exploit": true, "pipeline_minutes": 19.22241885, "t0_at": "2026-09-30T16:57:15.306000+00:00", "signals": { "check": { "at": "2026-09-30T17:58:28.767522+00:00", "days": 0.04251691576388889, "is_lower_bound": false, "measured_at": "2026-09-30T16:57:15.306000+00:00", "url": null }, "exploit": { "at": "2026-09-30T17:58:28.767522+00:00", "days": 0.04251691576388889, "is_lower_bound": false, "measured_at": "2026-09-30T16:57:15.306000+00:00", "url": null }, "public_poc": { "at": "2026-06-11T01:47:02+00:00", "days": -111.63209844907408, "is_lower_bound": false, "measured_at": "2026-09-30T16:57:15.306000+00:00", "url": "https://github.com/Quenary/tugtainer/security/advisories/GHSA-rg7c-vpfp-2w43" }, "trigger_signal": { "at": "2026-09-30T16:57:15.306000+00:00", "days": 0, "is_lower_bound": false, "measured_at": "2026-09-30T16:57:15.306000+00:00", "url": "https://www.cve.org/CVERecord?id=CVE-2026-55181" } } }
published 2026-09-30 17:39Z
last change 2026-10-21 09:43Z
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