CVE-2026-83803CWE-502insecure-deserialization

CVE-2026-83803

published September 22, 2026

CVSS
7.7
EPSS
1%
Percentile
48.3
In the wild
Unconfirmed
What it is

Sentry is an error tracking and performance monitoring tool. From 23.11.0 until 26.7.0, Sentry instances with the relocation feature enabled unsafely deserialize a legacy database field while importing a user-supplied relocation archive. An authenticated user can craft an archive that causes arbitrary code execution in the import worker process. Self-hosted installations using the default configuration are not affected because the relocation feature is disabled by default. This issue is fixed in version 26.7.0.

The record
Technical detail
CVSS
7.7 · NONE
CVSS v4.0
7.7 · CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
EPSS
0.00605 · 48.3th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-09-22T21:17Z
References (4)
EPSS history
Timeline
  • 24 SEP 03:25Z
    EPSS moved — → 1%
    epss
  • 22 SEP 16:24Z
    Sentry: Unsafe pickle deserialization in Relocation Feature
    cvelistv5