CVE intelligence and bounded remediation

CVE-2023-49094 — Symbolicator is a symbolication service for native stacktraces and minidumps with symbol server support

Medium CVSS 4.3

Symbolicator is a symbolication service for native stacktraces and minidumps with symbol server support. An attacker could make Symbolicator send arbitrary GET HTTP requests to internal IP addresses by using a specially crafted HTTP endpoint. The response could be reflected to the attacker if they have an account on Sentry instance. The issue has been fixed in the release 23.11.2.

Severity
Medium
CVSS
4.3 (3.1)
Published
2023-11-30
CISA KEV
Not currently listed
Ecosystem
software/application
Weaknesses
CWE-918

Affected products

  • sentry / symbolicator

Matched remediation archetype

Server-side request forgery and unintended proxying

This catalog composition supplies bounded fallback guidance. Explicitly reviewed curated workflows load with the complete record below.

Check exposure

  • Inventory server-side URL fetchers, webhooks, importers, previews, redirects, proxies, and protocol handlers reachable from untrusted input.
  • Map egress paths to internal services, metadata endpoints, loopback, private address space, and privileged control planes.
  • Review DNS resolution, redirect, proxy, credential-forwarding, and URL parsing behavior without requesting sensitive targets.

Remediate safely

  • Replace arbitrary destinations with named integrations or a strict allowlist of schemes, hosts, ports, and paths.
  • Resolve and validate every destination and redirect hop, then enforce egress policy independently of application checks.
  • Remove ambient credentials and sensitive headers from fetchers; apply response size, time, and content limits.

Authoritative sources

Complete CVE record and remediation plan

The detailed catalog view below loads this exact record, its source evidence, and the full seven-phase agentic change plan.