CVE-2026-58161: CWE-476 NULL Pointer Dereference in Apache Software Foundation Apache Traffic Server
Apache Traffic Server can crash from null dereferences and dangling references in TLS and SNI handling. 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
CVE-2026-58161 is a high-severity vulnerability in Apache Traffic Server where null pointer dereferences and dangling references occur during TLS and Server Name Indication (SNI) processing. These memory handling errors can lead to server crashes, resulting in denial of service. The affected versions are 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The vendor recommends upgrading to 9.2.15 or 10.1.4 to remediate the issue.
Potential Impact
The vulnerability causes Apache Traffic Server to crash due to null pointer dereferences and dangling references in TLS and SNI handling. This results in denial of service (availability impact) but does not affect confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to versions 9.2.15 or 10.1.4, which contain fixes for this vulnerability. Patch status is confirmed by the vendor's recommendation to upgrade to these versions. No additional mitigations are specified.
CVE-2026-58161: CWE-476 NULL Pointer Dereference in Apache Software Foundation Apache Traffic Server
Description
Apache Traffic Server can crash from null dereferences and dangling references in TLS and SNI handling. 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
CVE-2026-58161 is a high-severity vulnerability in Apache Traffic Server where null pointer dereferences and dangling references occur during TLS and Server Name Indication (SNI) processing. These memory handling errors can lead to server crashes, resulting in denial of service. The affected versions are 8.0.0 through 8.1.9, 9.0.0 through 9.2.14, and 10.0.0 through 10.1.3. The vendor recommends upgrading to 9.2.15 or 10.1.4 to remediate the issue.
Potential Impact
The vulnerability causes Apache Traffic Server to crash due to null pointer dereferences and dangling references in TLS and SNI handling. This results in denial of service (availability impact) but does not affect confidentiality or integrity according to the CVSS vector.
Mitigation Recommendations
Users should upgrade Apache Traffic Server to versions 9.2.15 or 10.1.4, which contain fixes for this vulnerability. Patch status is confirmed by the vendor's recommendation to upgrade to these versions. No additional mitigations are specified.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-06-29T15:50:27.621Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a69c9f29c2644c7f8487e4a
Added to database: 07/29/2026, 09:37:54 UTC
Last enriched: 07/29/2026, 10:25:40 UTC
Last updated: 07/29/2026, 21:29:51 UTC
Views: 6
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