Deserialization of Untrusted Data in sentry - #VU138420
Published: July 20, 2026
Vulnerability identifier: #VU138420
CSH Severity: Medium
CVSS v4: 8.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-502
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to deserialization of untrusted data in the relocation feature import worker process when processing a crafted relocation archive. A remote user can submit a crafted relocation archive to execute arbitrary code.
Only instances with the relocation feature enabled are vulnerable. Self-hosted instances using default configuration are not affected because the feature is disabled by default.
Affected software
sentry
Remediation
Install security update from vendor's website.
sentry - update to 26.7.0