CVE-2020-27589 json
Improper Certificate Validation in blackduck
published 2020-11-06 6 y ago modified 2026-06-17 4 mo ago also GHSA-f248-v4qh-x2r6 , PYSEC-2020-26 , EUVD-2020-0052
- cvss
- 7.5
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 1.1%
- EPSS 1.1% chance of exploitation in 30 days, percentile 66%
- public exploits
- 0
- none known
Summary
Synopsys hub-rest-api-python (aka blackduck on PyPI) version 0.0.25 - 0.0.52 does not validate SSL certificates in certain cases.
Patch / fix
- pypi blackduck 0.0.53
Exploit prediction
1.13% chance of exploitation in the next 30 days, higher than 66% of all scored CVEs (FIRST EPSS, 2026-11-08).
Exploits and checks
- optiv.com https://www.optiv.com/explore-optiv-insights/source-zero/certificate-validation-disabled-black-duck-api-wrapper referenced PoC, tagged "exploit" by a source, unverified
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
| NVD | 2.0 | 5.0 | AV:N/AC:L/Au:N/C:N/I:P/A:N |
| GitHub | 3.1 | 7.5 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| pypi | blackduck | >=0.0.25, <0.0.53 |
0.0.53 |
Classification
- Weakness
-
- CWE-295 Improper Certificate Validation
References
-
github.com
/blackducksoftware/hub-rest-api-python/pull/113/commits/273b27d0de1004389dd8cf43c40b1197c787e7cd
patch, third-party-advisory, web
-
github.com
/blackducksoftware/hub-rest-api-python/pull/113
web
-
github.com
/blackducksoftware/hub-rest-api-python/commit/0a25777117515b8b4ff287a98f57837a8c6bdbdb
web
-
optiv.com
/explore-optiv-insights/source-zero/certificate-validation-disabled-black-duck-api-wrapper
web, exploit, third-party-advisory
-
community.synopsys.com
/s/question/0D52H00005JCZAXSA5/announcement-black-duck-defect-identified
web, vendor-advisory
-
pypi.org
/project/blackduck/
third-party-advisory, package
-
github.com
/blackducksoftware/hub-rest-api-python
package, third-party-advisory, web
-
nvd.nist.gov
/vuln/detail/CVE-2020-27589
advisory
-
github.com
/advisories/GHSA-f248-v4qh-x2r6
advisory
-
github.com
/pypa/advisory-database/tree/main/vulns/blackduck/PYSEC-2020-26.yaml
web
-
pypi.org
/project/blackduck
web
Sources
- CVE List CVE-2020-27589
- GitHub Advisory GHSA-f248-v4qh-x2r6
- NVD CVE-2020-27589
- OSV PYSEC-2020-26
Fencer Vulns 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.