An Open Redirect vulnerability was discovered in the SAML Single Sign-On functionality due to insufficient validation of a user-controlled redirection parameter. An unauthenticated attacker can craft a request to the SAML sign-in endpoint and poison the cached SAML redirection for other users who subsequently initiate SAML Single Sign-On, enabling phishing and credential-theft attacks, as well as disrupting SAML authentication for all affected users.
CVE-2026-31982
Score 7.1 from GitHub Security Advisory published 2026-07-09. a secondary CVSS source baseline 7.1; sources differ by 0.0.
- High severity, but no confirmed exploitation yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.1
- EG Score
- 7.1(high)
- EG Risk
- 32(Track)EG Risk 32/100SSVC: 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 computedSeverity71% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 6.3%
- KEV
- Not listed
Published
July 9, 2026
Last Modified
July 10, 2026
Advisory Details (1)
Auto-updated Jul 9, 2026NN-2026:9-01 - Open Redirect in SAML Single Sign-On in Guardian/CMC before 26.2.0 - CVE-2026-31982 | Product Security Incident Response Portal
https://security.nozominetworks.com/NN-2026:9-01Vendor Advisories for CVE-2026-31982(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 14× in last 7d / 42× 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.
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 14:18 UTCEPSS rescore
- 2026-07-23 03:08 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-21 15:24 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-20 17:08 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 14:31 UTCEPSS rescore
- 2026-07-19 02:29 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-18 10:04 UTCEPSS rescore
- 2026-07-16 20:11 UTCGHSA enrichment
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-16 07:20 UTCGHSA enrichment
- 2026-07-15 18:29 UTCGHSA enrichment
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 05:33 UTCGHSA enrichment
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-14 16:42 UTCGHSA enrichment
Show 17 moreShow fewer
- 2026-07-14 03:51 UTCGHSA enrichment
- 2026-07-13 22:30 UTCEPSS rescore
- 2026-07-13 15:00 UTCGHSA enrichment
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 02:08 UTCGHSA enrichment
- 2026-07-12 13:17 UTCGHSA enrichment
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-12 00:21 UTCGHSA enrichment
- 2026-07-11 11:29 UTCGHSA enrichment
- 2026-07-11 08:27 UTCEPSS rescore
- 2026-07-10 22:38 UTCGHSA enrichment
- 2026-07-10 09:46 UTCGHSA enrichment
- 2026-07-09 20:53 UTCGHSA enrichment
- 2026-07-09 19:10 UTCEPSS rescore
- 2026-07-09 08:02 UTCEG score recompute
- 2026-07-09 08:01 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-601
Frequently asked(5)
What is CVE-2026-31982?
When was CVE-2026-31982 disclosed?
Is CVE-2026-31982 actively exploited?
What is the CVSS score of CVE-2026-31982?
How do I remediate CVE-2026-31982?
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-31982
Is Your Infrastructure Affected by CVE-2026-31982?
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