CVE-2024-37886 json
Nextcloud user_oidc's ID4me does not validate signature or expiration
published 2024-06-14 2 y ago modified 2026-06-17 4 mo ago also EUVD-2024-36870
- cvss
- 5.4
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 15%
- public exploits
- 0
- none known
Summary
user_oidc app is an OpenID Connect user backend for Nextcloud. An attacker could potentially trick the app into accepting a request that is not signed by the correct server. It is recommended that the Nextcloud user_oidc app is upgraded to 1.3.5, 2.0.0, 3.0.0, 4.0.0 or 5.0.0.
Patch / fix
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2024-37886 updated cvss 8.1
nextcloud: multiple vulnerabilities
-
Red Hat All currently supported Red Hat productsnot affected: vulnerable code not present
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.24% chance of exploitation in the next 30 days, higher than 15% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N |
| NVD | 3.1 | 4.7 | CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:L/A:N |
Affected products
- nextcloud security-advisories
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
github.com
/nextcloud/user_oidc/pull/715
issue-tracking, patch
-
github.com
/nextcloud/security-advisories/security/advisories/GHSA-vw5h-29xf-g55g
vendor-advisory
-
hackerone.com
/reports/1878391
issue-tracking
Sources
- CVE List CVE-2024-37886
- NVD CVE-2024-37886
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.