CVE-2026-81285: CWE-770 Allocation of Resources Without Limits or Throttling in WPMU DEV Smush Image Compression and Optimization
Description
CVE-2026-81285 is a high-severity vulnerability in WPMU DEV's Smush Image Compression and Optimization plugin versions up to 4.2.0. It allows unauthenticated attackers to cause a denial of service by allocating resources without limits or throttling. This vulnerability does not impact confidentiality or integrity but can disrupt availability.
CVSS v3.1
Score 7.5high
Affected software
WPMU DEV
Smush Image Compression and Optimization
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability, classified as CWE-770, involves allocation of resources without limits or throttling in the Smush Image Compression and Optimization plugin for WordPress. An unauthenticated attacker can exploit this flaw to trigger a denial of service condition, impacting the availability of the service. The CVSS v3.1 base score is 7.5, reflecting network attack vector, low attack complexity, no privileges or user interaction required, and impact limited to availability. No official patch or remediation guidance has been published yet, and no known exploits are reported in the wild.
Potential Impact
The vulnerability allows an unauthenticated attacker to cause a denial of service, potentially making the affected service unavailable. There is no impact on confidentiality or integrity.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, consider implementing external rate limiting or resource usage controls to mitigate potential denial of service attempts.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Patchstack
- Date Reserved
- 2026-08-26T17:33:24.196Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a91ab5dacd9273b490abfe3
Added to database: 08/28/2026, 15:38:05 UTC
Last enriched: 09/08/2026, 03:37:46 UTC
Last updated: 10/13/2026, 18:48:24 UTC
Views: 92
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