Denial of service (DoS) in github.com/russellhaering/gosaml2
Priority LOW 36CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-476.
Summary
This affects all versions <0.7.0 of package github.com/russellhaering/gosaml2. There is a crash on nil-pointer dereference caused by sending malformed XML signatures.
Why it matters now
EPSS 0.01662 76th percentileScored 2026-11-07
Fix Fixed github.com/russellhaering/gosaml2 (Go): 0.7.0github.com/russellhaering/goxmldsig (Go): 1.1.1
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 |
|---|---|---|---|---|---|
| — | github.com/russellhaering/gosaml2 | all versions | — | No fix listed | CNA |
| — | github.com/russellhaering/gosaml2 (Go) | before 0.7.0 | 0.7.0 | Patch available | GHSA-prjq-f4q3-fvfr |
| — | github.com/russellhaering/goxmldsig (Go) | before 1.1.1 | 1.1.1 | Patch available | GHSA-prjq-f4q3-fvfr |
- github.com/russellhaering/gosaml2 Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/russellhaering/gosaml2 (Go) Vendor— Affected before 0.7.0 Fixed in 0.7.0 Patch available GHSA-prjq-f4q3-fvfr
- github.com/russellhaering/goxmldsig (Go) Vendor— Affected before 1.1.1 Fixed in 1.1.1 Patch available GHSA-prjq-f4q3-fvfr
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:gosaml2_project:gosaml2:*:*:*:*:*:*:*:* | all versions | Vulnerable | Gosaml2 Project |
- cpe:2.3:a:gosaml2_project:gosaml2:*:*:*:*:*:*:*:* Versions all versions Vulnerable ·Gosaml2 Project
Remediation
- Fix · GHSA-prjq-f4q3-fvfr github.com/russellhaering/gosaml2 (Go) Fixed in 0.7.0 Advisory →
- Fix · GHSA-prjq-f4q3-fvfr github.com/russellhaering/goxmldsig (Go) Fixed in 1.1.1 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2020-7731
- 2026-10-03 Alias added: GHSA-prjq-f4q3-fvfr
References
Other 6
- https://github.com/russellhaering/gosaml2/releases/tag/v0.7.0
- https://github.com/russellhaering/gosaml2/security/advisories/GHSA-prjq-f4q3-fvfr
- https://github.com/russellhaering/goxmldsig/issues/48
- https://github.com/russellhaering/gosaml2/pull/90
- https://github.com/russellhaering/gosaml2/commit/66e3b7affd622b8b24ea1e18845f045e46b23424
- https://github.com/russellhaering/gosaml2
More Gosaml2 Project Gosaml2 vulnerabilities
- TI-2023-11630 gosaml2 vulnerable to Denial of Service via deflate decompression bomb CVSS 3.1MEDIUM 5.3
Sources
- CVE-2020-7731 · CVE Program
- CVE-2020-7731 · NVD
- FIRST EPSS
- GHSA-prjq-f4q3-fvfr · GitHub Advisory Database · CC BY 4.0
- CVE-2020-7731 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences