CVE-2026-26047 (GCVE-0-2026-26047)

Vulnerability from cvelistv5 – Published: 2026-02-21 05:40 – Updated: 2026-02-23 19:30
VLAI?
Title
Moodle: moodle: uncontrolled resource consumption in tex formula editor leading to denial of service
Summary
A denial-of-service vulnerability was identified in Moodle’s TeX formula editor. When rendering TeX content using mimetex, insufficient execution time limits could allow specially crafted formulas to consume excessive server resources. An authenticated user could abuse this behavior to degrade performance or cause service interruption.
Severity ?
6.5 (Medium)
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE
  • CWE-400 - Uncontrolled Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
Affected: 0 , < 4.5.9 (semver)
Affected: 5.0.0 , < 5.0.5 (semver)
Affected: 5.1.0 , < 5.1.2 (semver)
Credits
Red Hat would like to thank Aleksey Solovev (Positive Technologies) for reporting this issue.
Show details on NVD website
To clipboard 

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
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  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



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