Path Traversal in Pocoo Babel
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.
Vulnerability class: Path Traversal (Directory Traversal)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.008 (54.3th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000
Affected products
- Pocoo Babel
- Debian Linux — versions 10.0
Weakness classification (CWE)
Public proof-of-concept exploits
References
- www.tenable.com/security/research/tra-2021-14 (Exploit, Third Party Advisory)
- github.com/python-babel/babel/pull/782 (Patch, Third Party Advisory)
- lists.debian.org/debian-lts/2021/10/msg00040.html (Mailing List, Third Party Advisory)
- lists.debian.org/debian-lts-announce/2021/10/msg00018.html (mailing-list, Mailing List, Third Party Advisory)
- www.debian.org/security/2021/dsa-5018 (vendor-advisory, Third Party Advisory)
Frequently asked questions
- What is CVE-2021-42771?
- CVE-2021-42771 is a high-severity vulnerability in Pocoo Babel, classified under Path Traversal. CVSS score: 7.8/10. Published 2021-10-20.
- How severe is CVE-2021-42771?
- High severity. CVSS v3 base score is 7.8 out of 10.
- Is CVE-2021-42771 known to be exploited?
- 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.