Client Denial of Service on TUF

published 2020-01-14 6 y ago modified 2026-06-17 4 mo ago also GHSA-2828-9vh6-9m6j , PYSEC-2020-146 , EUVD-2020-0225

cvss: 5.3; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 1.8%; EPSS 1.8% chance of exploitation in 30 days, percentile 78%
public exploits: 0; none known

TUF (aka The Update Framework) 0.7.2 through 0.12.1 allows Uncontrolled Resource Consumption.

Patch / fix

fixed in 1 links 2

pypi tuf 0.12.2

github.com/theupdateframework/tuf/commits/develop advisory
github.com/theupdateframework/tuf/issues/973 advisory

Exploit prediction

1.76% chance of exploitation in the next 30 days, higher than 78% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

github.com https://github.com/theupdateframework/tuf/issues/973 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P
GitHub	3.1	5.3	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected packages

ecosystem	package	affected	fixed in
pypi	tuf	>=0.7.2, <0.12.2 >=0.7.5, <0.12.2	0.12.2

Classification

Weakness

CWE-400 Uncontrolled Resource Consumption

References

github.com /theupdateframework/tuf/commits/develop
web, patch, third-party-advisory
github.com /theupdateframework/tuf/issues/973
web, exploit, issue-tracking, patch, third-party-advisory, report
github.com /theupdateframework/tuf/security/advisories/GHSA-2828-9vh6-9m6j
web
nvd.nist.gov /vuln/detail/CVE-2020-6173
advisory
github.com /pypa/advisory-database/tree/main/vulns/tuf/PYSEC-2020-146.yaml
web
github.com /theupdateframework/tuf
package
github.com /advisories/GHSA-2828-9vh6-9m6j
advisory

Sources

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.

Summary