Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token…
Priority MEDIUM 46CWE-287Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Security bypass
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- Fixed
Attack profile from CVSS 3.0 · NVD. Fix status from CNA and GitHub. Impact type from CWE-287.
Summary
Buildbot before 1.8.2 and 2.x before 2.3.1 accepts a user-submitted authorization token from OAuth and uses it to authenticate a user. If an attacker has a token allowing them to read the user details of a victim, they can login as the victim.
Why it matters now
EPSS 0.01841 79th percentileScored 2026-11-07
Fix Fixed buildbot (PyPI): 1.8.2, 2.3.1
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 |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | buildbot (PyPI) | before 1.8.2 | 1.8.2 | Patch available | GHSA-g86p-hgx5-2pfh |
| — | buildbot (PyPI) | 2.0.0 to before 2.3.1 | 2.3.1 | Patch available | GHSA-g86p-hgx5-2pfh |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- buildbot (PyPI) Vendor— Affected before 1.8.2 Fixed in 1.8.2 Patch available GHSA-g86p-hgx5-2pfh
- buildbot (PyPI) Vendor— Affected 2.0.0 to before 2.3.1 Fixed in 2.3.1 Patch available GHSA-g86p-hgx5-2pfh
Remediation
- Fix · GHSA-g86p-hgx5-2pfh buildbot (PyPI) Fixed in 1.8.2 Advisory →
- Fix · GHSA-g86p-hgx5-2pfh buildbot (PyPI) Fixed in 2.3.1 Advisory →
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2019-12300
- 2026-10-03 Alias added: GHSA-g86p-hgx5-2pfh
References
Advisory 4
Other 4
- https://github.com/buildbot/buildbot
- https://github.com/pypa/advisory-database/tree/main/vulns/buildbot/PYSEC-2019-6.yaml
- https://lists.fedoraproject.org/archives/list/[email protected]/message/4XLOM2K4M4723BCLHZJEX52KJXZSEVRL
- https://lists.fedoraproject.org/archives/list/[email protected]/message/7GXKO7OYLKBTXXXKF4VPHWT7GVYWFVYA
More Buildbot vulnerabilities
- TI-2019-05201 www/resource.py in Buildbot before 1.8.1 allows CRLF injection in the Location header of… CVSS 3.0MEDIUM 6.1
- TI-2009-02826 Multiple cross-site scripting (XSS) vulnerabilities in Buildbot 0.7.6 through 0.7.11p2… CVSS 2.0MEDIUM 4.3
- TI-2009-02819 Cross-site scripting (XSS) vulnerability in the waterfall web status view… CVSS 2.0MEDIUM 4.3
Sources
- CVE-2019-12300 · CVE Program
- CVE-2019-12300 · NVD
- FIRST EPSS
- GHSA-g86p-hgx5-2pfh · GitHub Advisory Database · CC BY 4.0
- CVE-2019-12300 · 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