ZITADEL is an open source identity management platform. Prior to 3.4.12 and 4.15.2, ZITADEL is an open source identity management platform. From 3.0.0-rc.1 through 3.4.11 and from 4.0.0-rc.1 through 4.15.1, ZITADEL's external JWT Identity Provider validation in internal/idp/providers/jwt/session.go skips expiration handling when an incoming token omits the exp claim, allowing a token from a trusted issuer to be treated as valid without an automatic expiration window. This issue is fixed in versions 3.4.12 and 4.15.2.
CVE-2026-56665
This medium-severity CVE scores 4.2 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 94% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- Lower severity and no public exploit yet
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 4.2
- EG Score
- 4.2(medium)
- EG Risk
- 19(Track)EG Risk 19/100SSVC: 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 computedSeverity42% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 6.3%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (5)
Auto-updated Jul 10, 2026Missing Token Expiration (`exp`) Validation in JWT IdP Provider · Advisory · zitadel/zitadel · GitHub
https://github.com/zitadel/zitadel/security/advisories/GHSA-v77h-2w3m-94hxv4.15.2
Patch available: zitadel/zitadel v4.15.2
https://github.com/zitadel/zitadel/releases/tag/v4.15.2v3.4.12
Patch available: zitadel/zitadel v3.4.12
https://github.com/zitadel/zitadel/releases/tag/v3.4.12commit d1c3aa84af8f (zitadel/zitadel)
Fix landed in zitadel/zitadel commit d1c3aa84af8f — awaiting tagged release
https://github.com/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551accommit 4925fab849d3 (zitadel/zitadel)
Fix landed in zitadel/zitadel commit 4925fab849d3 — awaiting tagged release
https://github.com/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 9× in last 7d / 20× 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 03:20 UTCEG score recompute
- 2026-07-22 14:08 UTCEPSS rescore
- 2026-07-21 15:25 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
- 2026-07-16 17:03 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 16:57 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-15 02:00 UTCEPSS rescore
- 2026-07-13 22:31 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-13 06:13 UTCEPSS rescore
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-10 17:53 UTCEG score recompute
- 2026-07-10 17:52 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-613
Frequently asked(5)
What is CVE-2026-56665?
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Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-56665
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