util/src/zip.rs in Grin before 1.0.2 mishandles suspicious files.

published 2019-02-26 7 y ago modified 2026-06-17 4 mo ago also EUVD-2019-18571

cvss: 9.8; version 3.1, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 3.6%; EPSS 3.6% chance of exploitation in 30 days, percentile 89%
public exploits: 0; none known

util/src/zip.rs in Grin before 1.0.2 mishandles suspicious files. An attacker can execute arbitrary code via directory traversal in a ZIP archive.

Patch / fix

fixed in 1 links 2

grin grin 1.0.2

github.com/mimblewimble/grin#2624 pull request
github.com/mimblewimble/grin/releases/tag/v1.0.2 release

Exploit prediction

3.59% chance of exploitation in the next 30 days, higher than 89% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

grin-forum.org https://www.grin-forum.org/t/critical-vulnerability-in-grin-1-0-1-and-older-fixed-in-1-0-2/4343 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by	version	score	vector
NVD	3.1	9.8	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
NVD	2.0	7.5	AV:N/AC:L/Au:N/C:P/I:P/A:P

Classification

Weakness

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

References

github.com /mimblewimble/grin/pull/2624
patch, third-party-advisory
grin-forum.org /t/critical-vulnerability-in-grin-1-0-1-and-older-fixed-in-1-0-2/4343
exploit, issue-tracking, third-party-advisory
github.com /mimblewimble/grin/releases/tag/v1.0.2
release-notes, third-party-advisory

Sources

CVE List CVE-2019-9195
NVD CVE-2019-9195

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