CVE-2026-55768: CWE-789: Memory Allocation with Excessive Size Value in allinurl goaccess
GoAccess versions prior to 1.11 contain a vulnerability in the built-in WebSocket server where a 64-bit extended frame length is improperly narrowed to a signed 32-bit field. This allows an unauthenticated remote attacker to bypass the maximum frame size check and request an extremely large memory allocation, causing the process to terminate. The issue is fixed in version 1.11.
AI Analysis
Technical Summary
CVE-2026-55768 is a high-severity vulnerability in GoAccess, a real-time web log analyzer. The vulnerability arises because the WebSocket server narrows a 64-bit extended frame length into a signed 32-bit payload length field before enforcing the maximum frame size. This integer narrowing allows an unauthenticated remote client to bypass size checks and request an approximately 18-exabyte memory allocation, leading to process termination (denial of service). The flaw affects all versions prior to 1.11 and is resolved in version 1.11.
Potential Impact
An unauthenticated remote attacker can cause a denial of service by forcing the GoAccess process to attempt an excessive memory allocation (~18 exabytes), which terminates the process. This disrupts the availability of the GoAccess service. There is no indication of code execution or data disclosure from the provided information.
Mitigation Recommendations
Upgrade GoAccess to version 1.11 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the issue is resolved in version 1.11. No other mitigations are indicated.
CVE-2026-55768: CWE-789: Memory Allocation with Excessive Size Value in allinurl goaccess
Description
GoAccess versions prior to 1.11 contain a vulnerability in the built-in WebSocket server where a 64-bit extended frame length is improperly narrowed to a signed 32-bit field. This allows an unauthenticated remote attacker to bypass the maximum frame size check and request an extremely large memory allocation, causing the process to terminate. The issue is fixed in version 1.11.
CVSS v4.0
Score 8.7high
Affected software
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AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-55768 is a high-severity vulnerability in GoAccess, a real-time web log analyzer. The vulnerability arises because the WebSocket server narrows a 64-bit extended frame length into a signed 32-bit payload length field before enforcing the maximum frame size. This integer narrowing allows an unauthenticated remote client to bypass size checks and request an approximately 18-exabyte memory allocation, leading to process termination (denial of service). The flaw affects all versions prior to 1.11 and is resolved in version 1.11.
Potential Impact
An unauthenticated remote attacker can cause a denial of service by forcing the GoAccess process to attempt an excessive memory allocation (~18 exabytes), which terminates the process. This disrupts the availability of the GoAccess service. There is no indication of code execution or data disclosure from the provided information.
Mitigation Recommendations
Upgrade GoAccess to version 1.11 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the issue is resolved in version 1.11. No other mitigations are indicated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-17T14:34:51.881Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a6bbd2e9c2644c7f8b08ccc
Added to database: 07/30/2026, 21:07:58 UTC
Last enriched: 07/30/2026, 21:22:35 UTC
Last updated: 07/30/2026, 21:22:35 UTC
Views: 3
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