High severity8.7NVD Advisory· Published Sep 9, 2020· Updated Jun 17, 2026
CVE-2020-15163
CVE-2020-15163
Description
Python TUF (The Update Framework) reference implementation before version 0.12 it will incorrectly trust a previously downloaded root metadata file which failed verification at download time. This allows an attacker who is able to serve multiple new versions of root metadata (i.e. by a person-in-the-middle attack) culminating in a version which has not been correctly signed to control the trust chain for future updates. This is fixed in version 0.12 and newer.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
tufPyPI | < 0.12.0 | 0.12.0 |
Affected products
3- cpe:2.3:a:linuxfoundation:the_update_framework:*:*:*:*:*:*:*:*Range: <0.12.0
- Range: < 0.12
Patches
Vulnerability mechanics
References
8- github.com/theupdateframework/tuf/pull/885nvdPatchThird Party AdvisoryWEB
- github.com/advisories/GHSA-f8mr-jv2c-v8mgghsaADVISORY
- github.com/theupdateframework/tuf/releases/tag/v0.12.0nvdThird Party AdvisoryWEB
- github.com/theupdateframework/tuf/security/advisories/GHSA-f8mr-jv2c-v8mgnvdThird Party AdvisoryWEB
- nvd.nist.gov/vuln/detail/CVE-2020-15163ghsaADVISORY
- pypi.org/project/tufnvdProductVendor AdvisoryWEB
- github.com/pypa/advisory-database/tree/main/vulns/tuf/PYSEC-2020-145.yamlghsaWEB
- github.com/theupdateframework/tuf/commit/3d342e648fbacdf43a13d7ba8886aaaf07334af7nvdBroken LinkWEB
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