CVE-2026-56748
HIGHAuthenticated RCE via Symlink Following in Cribl Stream Pack Git Import
Title source: cnaDescription
Improper validation of symbolic links in the Pack Git import feature in Cribl Stream before 4.18.2 allows a remote authenticated attacker with Pack import and pipeline preview permissions to execute arbitrary code as the Cribl server process via a crafted Git repository containing a symbolic link in the pack's functions directory.
References (2)
Core 2
Core References
Release Notes release-notes
Cribl Stream 4.18.2 Security Fixes
https://docs.cribl.io/stream/release-notes/release-v4182/#security-fixes
Scores
CVSS v3
8.8
EPSS
0.0057
EPSS Percentile
43.7%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-61
Status
published
Products (1)
Cribl/Cribl Stream
< 4.18.2
Published
Jul 27, 2026
Tracked Since
Jul 28, 2026