Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http
A vulnerability identified as CVE-2026-56853 affects certain versions of Microsoft-related software components including golang and Azure Linux 3.0. The issue involves the application of ReadHeaderTimeout during unencrypted HTTP/2 checks in the net/http package. This vulnerability has a high severity rating and a patch is available to address it.
AI Analysis
Technical Summary
CVE-2026-56853 concerns the improper application of ReadHeaderTimeout when performing unencrypted HTTP/2 checks in the net/http package. This could potentially lead to resource exhaustion or denial of service conditions as indicated by the associated CWE-770 (Allocation of Resources Without Limits or Throttling). The vulnerability affects specific versions of Microsoft software, Azure Linux 3.0, and golang as detailed in the affectedVersions field. The vendor has released a patch to remediate this issue.
Potential Impact
The vulnerability could allow an attacker to exploit the lack of proper timeout enforcement during unencrypted HTTP/2 checks, potentially leading to resource exhaustion or denial of service. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix from the vendor to affected versions to mitigate the risk. Since this is not a cloud service, remediation depends on user action to update affected software versions.
Apply ReadHeaderTimeout when doing unencrypted HTTP/2 check in net/http
Description
A vulnerability identified as CVE-2026-56853 affects certain versions of Microsoft-related software components including golang and Azure Linux 3.0. The issue involves the application of ReadHeaderTimeout during unencrypted HTTP/2 checks in the net/http package. This vulnerability has a high severity rating and a patch is available to address it.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56853 concerns the improper application of ReadHeaderTimeout when performing unencrypted HTTP/2 checks in the net/http package. This could potentially lead to resource exhaustion or denial of service conditions as indicated by the associated CWE-770 (Allocation of Resources Without Limits or Throttling). The vulnerability affects specific versions of Microsoft software, Azure Linux 3.0, and golang as detailed in the affectedVersions field. The vendor has released a patch to remediate this issue.
Potential Impact
The vulnerability could allow an attacker to exploit the lack of proper timeout enforcement during unencrypted HTTP/2 checks, potentially leading to resource exhaustion or denial of service. No known exploits are reported in the wild at this time.
Mitigation Recommendations
A patch is available for this vulnerability. Users should apply the official fix from the vendor to affected versions to mitigate the risk. Since this is not a cloud service, remediation depends on user action to update affected software versions.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- GHSA-xphw-4f88-5f39
- Osv Schema Version
- 1.4.0
- Aliases
- ["CVE-2026-56853"]
- Database Specific Severity
- HIGH
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a7ff608bf8831d5398816af
Added to database: 08/15/2026, 05:15:52 UTC
Last enriched: 09/12/2026, 03:03:51 UTC
Last updated: 09/29/2026, 18:13:10 UTC
Views: 86
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