CAS <= 1.0.0 - Unauthenticated SSRF
Priority MEDIUM 51CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
The does not validate a parameter before making a request to it, which could allow unauthenticated users to perform SSRF attack
Why it matters now
Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.01821 78th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by the CNA and NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Unknown | cas | up to 1.0.0 | — | No fix listed | CNA |
- cas VendorUnknown Affected up to 1.0.0 Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2024-4399
- 2026-10-03 Alias added: GHSA-q6fh-vc2v-h383
References
More Apereo Central Authentication Service vulnerabilities
- TI-2023-13363 LDAP password leak in Apereo CAS - GHSL-2023-009 CVSS 3.1HIGH 7.5
- TI-2024-10382 Apereo CAS login session expiration CVSS 4.0MEDIUM 6.3
- TI-2024-10383 Apereo CAS 2FA login improper authentication CVSS 4.0MEDIUM 5.3
- TI-2024-10381 Apereo CAS login redirect CVSS 4.0MEDIUM 5.3
- TI-2023-04254 MFA bypass in Apereo CAS CVSS 3.1CRITICAL 9.8
- TI-2019-08019 Multiple classes used within Apereo CAS before release 6.1.0-RC5 makes use of apache… CVSS 3.1HIGH 8.1
Sources
- CVE-2024-4399 · CVE Program
- CVE-2024-4399 · NVD
- FIRST EPSS
- GHSA-q6fh-vc2v-h383 · GitHub Advisory Database · CC BY 4.0
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