VulnerabilityModified
CVE-2021-42771
Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.
HIGH 7.8EPSS 0.77%
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.77%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Babel.Locale in Babel before 2.9.1 allows attackers to load arbitrary locale .dat files (containing serialized Python objects) via directory traversal, leading to code execution.
- CVSS 3.1
- 7.8 HIGHCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- EPSS
- 0.77% probability · 54th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- pocoo/babel · debian/debian linux
- Source
- cve@mitre.org
References
- https://github.com/python-babel/babel/pull/782Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00018.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts/2021/10/msg00040.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5018Third Party Advisory
- https://www.tenable.com/security/research/tra-2021-14Exploit, Third Party Advisory
- https://github.com/python-babel/babel/pull/782Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/10/msg00018.htmlMailing List, Third Party Advisory
- https://lists.debian.org/debian-lts/2021/10/msg00040.htmlMailing List, Third Party Advisory
- https://www.debian.org/security/2021/dsa-5018Third Party Advisory
- https://www.tenable.com/security/research/tra-2021-14Exploit, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.