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Vulnerabilities / CVE-2019-18183

critical

CVE-2019-18183

pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function.

Published Modified CWE 78
In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.8CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD.

Description

pacman before 5.2 is vulnerable to arbitrary command injection in lib/libalpm/sync.c in the apply_deltas() function. This can be exploited when unsigned databases are used. To exploit the vulnerability, the user must enable the non-default delta feature and retrieve an attacker-controlled crafted database and delta file.

Affected packages and fixed versions

SourcePackageFixed in
alpine 3.11pacman5.2.0-r0
alpine 3.12pacman5.2.0-r0
alpine 3.13pacman5.2.0-r0
alpine 3.14pacman5.2.0-r0
alpine 3.15pacman5.2.0-r0
alpine 3.16pacman5.2.0-r0
alpine 3.17pacman5.2.0-r0
alpine 3.18pacman5.2.0-r0
alpine 3.19pacman5.2.0-r0
alpine 3.20pacman5.2.0-r0
alpine 3.21pacman5.2.0-r0
alpine 3.22pacman5.2.0-r0
Show all 15 entries from 15 sources
SourcePackageFixed in
alpine 3.11pacman5.2.0-r0
alpine 3.12pacman5.2.0-r0
alpine 3.13pacman5.2.0-r0
alpine 3.14pacman5.2.0-r0
alpine 3.15pacman5.2.0-r0
alpine 3.16pacman5.2.0-r0
alpine 3.17pacman5.2.0-r0
alpine 3.18pacman5.2.0-r0
alpine 3.19pacman5.2.0-r0
alpine 3.20pacman5.2.0-r0
alpine 3.21pacman5.2.0-r0
alpine 3.22pacman5.2.0-r0
alpine 3.23pacman5.2.0-r0
alpine 3.24pacman5.2.0-r0
alpine edgepacman5.2.0-r0

References

Vulnerability data compiled from the Trivy vulnerability database (trivy-db, Aqua Security, Apache License 2.0), which aggregates third-party advisories. CVE records are published by The MITRE Corporation under the CVE Terms of Use; CVE is a trademark of MITRE. This product uses data from the NVD API but is not endorsed or certified by the NVD. Severity, titles and advisory data from the GitHub Advisory Database (CC BY 4.0), Red Hat security data (CC BY 4.0) and the other sources linked on each entry. Entries may be summarised or re-formatted; the linked original is the authoritative record.