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Fencer Vulns
medium 6.3

CVE-2022-41920 json

Zip slip in Lancet

published 2022-11-17 3 y ago modified 2026-06-17 4 mo ago also GHSA-pp3f-xrw5-q5j4 , GO-2022-1114 , EUVD-2022-7401

cvss
6.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 58%
public exploits
0
none known

Summary

Lancet is a general utility library for the go programming language. Affected versions are subject to a ZipSlip issue when using the fileutil package to unzip files. This issue has been addressed and a fix will be included in versions 2.1.10 and 1.3.4. Users are advised to upgrade. There are no known workarounds for this issue.

Patch / fix

  • go github.com/duke-git/lancet/v2 2.1.10
  • go github.com/duke-git/lancet 1.3.4
  • lancet_project lancet 1.3.4, 2.1.10

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
18 mo ago

Exploit prediction

0.86% chance of exploitation in the next 30 days, higher than 58% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/duke-git/lancet/security/advisories/GHSA-pp3f-xrw5-q5j4 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 6.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
GitHub 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected packages

ecosystem package affected fixed in
go github.com/duke-git/lancet/v2
>=2.0.0, <2.1.10
2.1.10
go github.com/duke-git/lancet
<1.3.4
1.3.4

Affected products

  • duke-git lancet

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory

References

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.