CVE-2026-58186: CWE-20 Improper Input Validation in Apache Software Foundation Apache Traffic Server
The Apache Traffic Server webp_transform plugin can decode unsafely and serve mislabeled, cacheable responses. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
AI Analysis
Technical Summary
The Apache Traffic Server webp_transform plugin contains an improper input validation vulnerability (CWE-20) that causes it to decode data unsafely and serve responses that are mislabeled and cacheable. This can lead to availability impact as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). The vulnerability affects multiple version ranges of Apache Traffic Server: 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. Upgrading to 9.2.15 or 10.1.4 addresses the issue.
Potential Impact
The vulnerability does not impact confidentiality or integrity but has a high impact on availability, potentially causing denial of service or disruption by serving incorrect cacheable responses. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to version 9.2.15 or 10.1.4, which contain fixes for this vulnerability. No other mitigation or temporary workaround is indicated.
CVE-2026-58186: CWE-20 Improper Input Validation in Apache Software Foundation Apache Traffic Server
Description
The Apache Traffic Server webp_transform plugin can decode unsafely and serve mislabeled, cacheable responses. This issue affects Apache Traffic Server: from 8.0.0 through 8.1.9, from 9.0.0 through 9.2.14, from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
CVSS v3.1
Score 7.5high
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The Apache Traffic Server webp_transform plugin contains an improper input validation vulnerability (CWE-20) that causes it to decode data unsafely and serve responses that are mislabeled and cacheable. This can lead to availability impact as indicated by the CVSS vector (AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H). The vulnerability affects multiple version ranges of Apache Traffic Server: 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. Upgrading to 9.2.15 or 10.1.4 addresses the issue.
Potential Impact
The vulnerability does not impact confidentiality or integrity but has a high impact on availability, potentially causing denial of service or disruption by serving incorrect cacheable responses. There are no known exploits in the wild at this time.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to version 9.2.15 or 10.1.4, which contain fixes for this vulnerability. No other mitigation or temporary workaround is indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-29T16:35:07.500Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a69c9f59c2644c7f8487ee2
Added to database: 07/29/2026, 09:37:57 UTC
Last enriched: 07/29/2026, 10:22:32 UTC
Last updated: 07/30/2026, 00:53:38 UTC
Views: 11
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