CVE-2026-56665 json
ZITADEL: Missing Token Expiration (`exp`) Validation in JWT IdP Provider
published 2026-07-10 4 mo ago modified 2026-09-17 53 d ago also EUVD-2026-42963 , GHSA-v77h-2w3m-94hx , GO-2026-6469
- cvss
- 4.2
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 18%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/zitadel/zitadel 3.4.12, 4.15.2
- zitadel zitadel 3.4.12, 4.15.2
- govulncheck-vulndb SLES 16.0, SLES for SAP applications 16.0 0.0.20260916T180043-160000.1.1
suse advisories SUSE-SU-2026:23855-1SUSE-SU-2026:23863-1
- govulncheck-vulndb openSUSE Leap 16.0 0.0.20260916T180043-160000.1.1
opensuse advisories openSUSE-SU-2026:21897-1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 4 mo ago
Exploit prediction
0.27% chance of exploitation in the next 30 days, higher than 18% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 4.2 | CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/zitadel/zitadel | >=4.0.0-rc.1, <4.15.2 <3.4.12 all versions |
4.15.2 3.4.12 |
Affected products
- zitadel zitadel
Classification
- Weakness
-
- CWE-613 DEPRECATED: Insufficient Session Expiration
References
-
github.com
/zitadel/zitadel/commit/4925fab849d39a88674485d937b79e54318b48a8
web, patch
-
github.com
/zitadel/zitadel/commit/d1c3aa84af8fcb0f33910ada30b866f4afb551ac
web, patch
-
github.com
/zitadel/zitadel/security/advisories/GHSA-v77h-2w3m-94hx
web, advisory
-
github.com
/zitadel/zitadel/releases/tag/v3.4.12
web
-
github.com
/zitadel/zitadel/releases/tag/v4.15.2
web
-
nvd.nist.gov
/vuln/detail/CVE-2026-56665
advisory
-
github.com
/zitadel/zitadel
package
Sources
- CVE List CVE-2026-56665
- GitHub Advisory GHSA-v77h-2w3m-94hx
- NVD CVE-2026-56665
- OSV GO-2026-6469
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.
CPEs and fixed versions use Anchore's correction of NVD's data: Added CPE configurations because not yet analyzed by NVD.