CVE-2021-42040
HIGH
7.5
CVSS Score
Published: October 6, 2021 at 08:28 PM UTC
Updated: June 17, 2026 at 04:09 AM UTC
1 product affected across 1 vendorMediaWiki
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Severity
HIGH7.5
Exploit prediction
EPSS 1%
Description
An issue was discovered in MediaWiki through 1.36.2. A parser function related to loop control allowed for an infinite loop (and php-fpm hang) within the Loops extension because egLoopsCountLimit is mishandled. This could lead to memory exhaustion.
Affected
Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.
v ≤ 1.36.2
Remediation
No guide yetNo remediation guidance has been written for this CVE yet. What the record does show:
Patch and advisory references
References (2)
x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://gerrit.wikimedia.org/r/q/I0caf6f129f94612b5bcf406a171aa5ffedea1f80x_refsource_MISCPatchVendor Advisory
Source: [email protected]
https://phabricator.wikimedia.org/T287347CVSS
- Attack Vector
- NETWORK
- Complexity
- LOW
- Privileges
- NONE
- User Interaction
- NONE
- Scope
- UNCHANGED
- Confidentiality
- NONE
- Integrity
- NONE
- Availability
- HIGH
Vector?
Quick Info
StatusMODIFIED
CWE
CWE-835
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