Quick answers
- Is CVE-2026-58488 exploited in the wild?
- No. Junglewise Threat Intelligence has no report of CVE-2026-58488 being exploited in the wild.
- How severe is CVE-2026-58488?
- Informational severity, with a CVSS score of 6.9, published 13 July 2026.
- Which products and versions are affected?
- HedgeDoc < 1.11.0.
- Is there a fix for CVE-2026-58488?
- No fixed version is recorded yet. Check the vendor's advisory in the references below. If you run it, Junglewise drafts a mitigation that fits your setup and applies it once you approve, with senior security engineers behind it.
- How is CVE-2026-58488 attacked?
- It is attacked over the network, in a network appliance.
- Am I affected by CVE-2026-58488?
- Check whether you run HedgeDoc at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.
Technical details
HedgeDoc versions prior to 1.11.0 incorrectly prioritized the 'cf-connecting-ip' HTTP header over the actual client IP address for rate-limiting purposes, even when requests did not originate from Cloudflare. An attacker can exploit this by providing arbitrary IP addresses in the header, effectively resetting the rate-limit counter for every few requests. This enables large-scale automated attacks such as credential stuffing or account registration spam. The vulnerability is addressed in version 1.11.0 by introducing a configuration toggle (CMD_RATE_LIMIT_USING_CLOUDFLARE) that disables header trust by default.
Affected products
- HedgeDoc HedgeDoc < 1.11.0
Timeline
- 2026-06-18: advisory: GitHub Security Advisory published
- 2026-07-13: disclosed: NVD publication date