CVE intelligence and bounded remediation

CVE-2024-34537 — Typo3 Typo3 security vulnerability

Medium CVSS 4.9

TYPO3 before 13.3.1 allows denial of service (interface error) in the Bookmark Toolbar (ext:backend), exploitable by an administrator-level backend user account via manipulated data saved in the bookmark toolbar of the backend user interface. The fixed versions are 10.4.46 ELTS, 11.5.40 LTS, 12.4.21 LTS, and 13.3.1.

Severity
Medium
CVSS
4.9 (3.1)
Published
2024-10-28
CISA KEV
Not currently listed
Ecosystem
software/application

Affected products

  • typo3 / typo3

Showing 1 representative product identities from 4 source matches. Confirm exact affected versions with the linked vendor and NVD evidence.

Matched remediation archetype

Resource exhaustion and denial of service

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

Check exposure

  • Identify attacker-influenced work factors including input size, nesting, compression, fan-out, regex cost, allocation, recursion, retries, and connection lifetime.
  • Map per-request and shared CPU, memory, disk, descriptor, thread, queue, and downstream-service limits.
  • Determine whether authentication, tenancy, quotas, and rate controls apply before expensive processing begins.

Remediate safely

  • Bound input size, nesting, expansion, work, concurrency, queue depth, retries, and execution time before resource-intensive processing.
  • Release resources on every success, error, cancellation, and timeout path and use backpressure instead of unbounded buffering.
  • Update affected components and add small deterministic tests that assert resource ceilings rather than exhausting a host.

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.