CVE-2025-3986 json
Apereo CAS CasConfigurationMetadataServerController.java redos
published last yr. modified 4mo ago also GHSA-mvwq-hcrj-f5x9 , EUVD-2025-12426
- cvss
- 4.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.7%
- EPSS 0.7% chance of exploitation in 30 days, percentile 51%
- public exploits
- 0
- none known
Summary
A vulnerability was found in Apereo CAS 5.2.6. It has been declared as problematic. This vulnerability affects unknown code of the file cas-5.2.6\core\cas-server-core-configuration-metadata-repository\src\main\java\org\apereo\cas\metadata\rest\CasConfigurationMetadataServerController.java. The manipulation of the argument Name leads to inefficient regular expression complexity. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
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Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.65% chance of exploitation in the next 30 days, higher than 51% of all scored CVEs (FIRST EPSS, 2026-11-09).
Exploits and checks
- wx.mail.qq.com https://wx.mail.qq.com/s?k=rk-m8GwRMVMcOjBY1a referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N |
| CNA | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| CNA | 3.0 | 4.3 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
| CNA | 2.0 | 4.0 | AV:N/AC:L/Au:S/C:N/I:N/A:P |
| CNA | 4.0 | 5.3 | CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X |
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H |
| GitHub | 3.1 | 4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apereo.cas:cas-server-core-configuration-metadata-repository | <=5.2.6 |
no fix listed |
Affected products
- Apereo CAS
Classification
References
-
wx.mail.qq.com
/s?k=rk-m8GwRMVMcOjBY1a
exploit, web, not-applicable
-
vuldb.com
/?id.306322
vdb-entry, technical-description, web, third-party-advisory
-
vuldb.com
/?ctiid.306322
signature, permissions-required, web, vdb-entry
-
vuldb.com
/?submit.557473
third-party-advisory, web, vdb-entry
-
nvd.nist.gov
/vuln/detail/CVE-2025-3986
advisory
-
github.com
/apereo/cas
package
Sources
- CVE List CVE-2025-3986
- GitHub Advisory GHSA-mvwq-hcrj-f5x9
- NVD CVE-2025-3986
Fencer Intel 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.