Shibboleth Service Provider before 3.2.1 allows content injection because template…
Priority LOW 27CWE-74Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
Shibboleth Service Provider before 3.2.1 allows content injection because template generation uses attacker-controlled parameters.
Why it matters now
EPSS 0.01305 70th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 2
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:* | before 3.2.1 | Vulnerable | Shibboleth |
| cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* | 10.0 | Vulnerable | Debian |
- cpe:2.3:a:shibboleth:service_provider:*:*:*:*:*:*:*:* Versions before 3.2.1 Vulnerable ·Shibboleth
- cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:* Versions 10.0 Vulnerable ·Debian
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-28963
- 2026-10-03 Alias added: GHSA-6jjj-9g6r-j2vh
References
Advisory 3
Sources
- CVE-2021-28963 · CVE Program
- CVE-2021-28963 · NVD
- FIRST EPSS
- GHSA-6jjj-9g6r-j2vh · GitHub Advisory Database · CC BY 4.0
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