CVE-2026-86756

MEDIUMPre-NVD 6.16.1—
EchelonGraph scoreHIGH confidence

Score 6.1 from GitHub Security Advisory published 2026-09-09. a secondary CVSS source baseline 6.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
6.1EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.1Exploit: None knownExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Snipe-IT 8.5.0 through 8.6.3 contains an open redirect vulnerability in its SAML assertion-consumer endpoint (SamlController::acs, POST /saml/acs). The endpoint wrote the RelayState POST parameter directly into Laravel's url.intended session key with only CR/LF characters stripped, and LoginController later issued redirect()->intended(), which passes an absolute URL through to the Location header unchanged. An unauthenticated attacker who induces a user of a SAML-SSO-enabled instance to visit a crafted IdP-initiated SSO link can therefore cause the victim's browser to be redirected to an arbitrary absolute external URL immediately after a successful authentication, which the advisory notes facilitates credential-harvesting phishing. No account on the target instance and no compromise of the identity provider are required. Only deployments with SAML SSO enabled are affected. Fixed in 8.7.0 (commit d30b73d, PR #19386), which validates RelayState via a new Helper::sameOriginUrl check before storing it.

CVSS v3
6.1
EG Score
6.1(high)
EG Risk
28(Track)
EG Risk 28/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity61% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
10%
KEV
Not listed

Published

September 9, 2026

Last Modified

September 16, 2026

Advisory Details (2)

Auto-updated Sep 9, 2026
Patch available. Sources: github.
generic

Snipe-IT 8.5.0 through 8.6.3 Open Redirect via SAML RelayState | Advisories | VulnCheck

https://www.vulncheck.com/advisories/snipe-it-8.5.0-through-8.6.3-open-redirect-via-saml-relaystate
github Patch Available

Open redirect via unvalidated SAML RelayState parameter after successful IdP-initiated login · Advisory · grokability/snipe-it · GitHub

https://github.com/grokability/snipe-it/security/advisories/GHSA-68hq-m589-8q9j

Vendor Advisories for CVE-2026-86756(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 20× in last 7d / 35× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 18:14 UTCGHSA enrichment
  3. 2026-09-19 18:58 UTCEG score recompute
  4. 2026-09-19 18:58 UTCGHSA enrichment
  5. 2026-09-18 19:41 UTCEG score recompute
  6. 2026-09-18 19:41 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-17 20:25 UTCEG score recompute
  9. 2026-09-17 20:25 UTCGHSA enrichment
  10. 2026-09-17 19:32 UTCEPSS rescore
  11. 2026-09-16 21:09 UTCGHSA enrichment
  12. 2026-09-16 15:35 UTCEG score recompute
  13. 2026-09-16 15:35 UTCGHSA enrichment
  14. 2026-09-16 14:09 UTCEPSS rescore
  15. 2026-09-16 05:15 UTCEPSS rescore
  16. 2026-09-15 16:16 UTCEG score recompute
  17. 2026-09-15 16:16 UTCGHSA enrichment
  18. 2026-09-15 03:12 UTCEPSS rescore
  19. 2026-09-15 03:12 UTCEPSS rescore
  20. 2026-09-14 17:00 UTCGHSA enrichment
  21. 2026-09-13 17:44 UTCEG score recompute
  22. 2026-09-13 17:44 UTCGHSA enrichment
  23. 2026-09-12 18:28 UTCEG score recompute
  24. 2026-09-12 18:28 UTCGHSA enrichment
  25. 2026-09-11 19:12 UTCEG score recompute
Show 10 more
  1. 2026-09-11 19:12 UTCGHSA enrichment
  2. 2026-09-11 14:53 UTCEPSS rescore
  3. 2026-09-11 14:53 UTCEPSS rescore
  4. 2026-09-10 19:56 UTCGHSA enrichment
  5. 2026-09-09 20:40 UTCEG score recompute
  6. 2026-09-09 20:40 UTCGHSA enrichment
  7. 2026-09-09 15:29 UTCEG score recompute
  8. 2026-09-09 14:26 UTCEG score recompute
  9. 2026-09-09 13:45 UTCEG score recompute
  10. 2026-09-09 13:44 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-86756?
CVE-2026-86756 is a medium vulnerability published on September 9, 2026. Snipe-IT 8.5.0 through 8.6.3 contains an open redirect vulnerability in its SAML assertion-consumer endpoint (SamlController::acs, POST /saml/acs). The endpoint wrote the RelayState POST parameter directly into Laravel's url.intended session key with only CR/LF characters stripped, and…
When was CVE-2026-86756 disclosed?
CVE-2026-86756 was first published in the National Vulnerability Database on September 9, 2026, with the most recent update on September 16, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-86756 actively exploited?
CVE-2026-86756 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 89.6% of all scored CVEs.
What is the CVSS score of CVE-2026-86756?
CVE-2026-86756 has a CVSS v3 base score of 6.1 (NVD).
How do I remediate CVE-2026-86756?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-86756, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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