CVE-2020-36563 json
Weak hash (SHA-1) in github.com/RobotsAndPencils/go-saml
published 5y ago modified 4mo ago also GHSA-5rhg-xhgr-5hfj , GO-2020-0047 , EUVD-2022-7517
- cvss
- 5.3
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 24%
- public exploits
- 0
- none known
Summary
XML Digital Signatures generated and validated using this package use SHA-1, which may allow an attacker to craft inputs which cause hash collisions depending on their control over the input.
Patch / fix
- github.com/RobotsAndPencils/go-saml@4a1b1f5 commit
- github.com/RobotsAndPencils/go-saml#38 pull request
- pkg.go.dev/vuln/GO-2020-0047 advisory
Is CVE-2020-36563 in your dependencies? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.
Check with FencerCISA SSVC
- Exploitation
- none
- Automatable
- yes
- Technical impact
- partial
- Assessed
- last yr.
Exploit prediction
0.32% chance of exploitation in the next 30 days, higher than 24% of all scored CVEs (FIRST EPSS, 2026-11-09).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CISA ADP | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| NVD | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| CNA | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
| GitHub | 3.1 | 5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/RobotsAndPencils/go-saml | <=0.0.0-20170520135329-fb13cb52a46b all versions |
no fix listed |
Affected products
- github.com/RobotsAndPencils/go-saml github.com/RobotsAndPencils/go-saml
Classification
- Weakness
-
- CWE-347 Improper Verification of Cryptographic Signature
References
-
github.com
/RobotsAndPencils/go-saml/pull/38
web, patch, third-party-advisory
-
pkg.go.dev
/vuln/GO-2020-0047
web, patch, vendor-advisory
-
github.com
/RobotsAndPencils/go-saml/commit/4a1b1f5752a029e171965e0510a425d0fdd1eced
web
-
nvd.nist.gov
/vuln/detail/CVE-2020-36563
advisory
-
github.com
/RobotsAndPencils/go-saml
package
Sources
- CVE List CVE-2020-36563
- GitHub Advisory GHSA-5rhg-xhgr-5hfj
- NVD CVE-2020-36563
- OSV GO-2020-0047
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.