Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
A vulnerability (CVE-2026-56852) was found in the golang.org/x/text library used by Red Hat Hardened Images RPMs, specifically in the norm.Iter component. This flaw can cause an infinite loop when processing invalid UTF-8 input, leading to a denial of service (DoS) condition where the affected application becomes unresponsive. Red Hat has issued an update for the buildah RPM to address this issue. The vulnerability is classified as high severity due to its potential to cause resource exhaustion and service disruption.
AI Analysis
Technical Summary
CVE-2026-56852 is a denial of service vulnerability in the golang.org/x/text library's norm.Iter component. The flaw triggers an infinite loop when processing input containing invalid UTF-8 bytes, causing excessive CPU or memory consumption and rendering the application unresponsive. Red Hat's security advisory RHSA-2026:49360 updates the buildah package to version 1.44.0-3.3.hum1 to fix this issue. The vulnerability is associated with CWE-835 (Loop with Unreachable Exit Condition). No active exploits are known in the wild. The advisory provides links to the fixed packages and additional details.
Potential Impact
The vulnerability allows a remote attacker to cause a denial of service by supplying specially crafted invalid UTF-8 input that triggers an infinite loop in the affected component. This results in resource exhaustion such as CPU and memory consumption, potentially causing the affected application to become unresponsive and unavailable. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Red Hat has released an updated buildah package (buildah-1.44.0-3.3.hum1) that addresses CVE-2026-56852. Users of affected Red Hat Hardened Images RPMs should apply this update promptly to remediate the vulnerability. No additional mitigations are specified or required beyond applying the official update.
Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update
Description
A vulnerability (CVE-2026-56852) was found in the golang.org/x/text library used by Red Hat Hardened Images RPMs, specifically in the norm.Iter component. This flaw can cause an infinite loop when processing invalid UTF-8 input, leading to a denial of service (DoS) condition where the affected application becomes unresponsive. Red Hat has issued an update for the buildah RPM to address this issue. The vulnerability is classified as high severity due to its potential to cause resource exhaustion and service disruption.
Affected software
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-56852 is a denial of service vulnerability in the golang.org/x/text library's norm.Iter component. The flaw triggers an infinite loop when processing input containing invalid UTF-8 bytes, causing excessive CPU or memory consumption and rendering the application unresponsive. Red Hat's security advisory RHSA-2026:49360 updates the buildah package to version 1.44.0-3.3.hum1 to fix this issue. The vulnerability is associated with CWE-835 (Loop with Unreachable Exit Condition). No active exploits are known in the wild. The advisory provides links to the fixed packages and additional details.
Potential Impact
The vulnerability allows a remote attacker to cause a denial of service by supplying specially crafted invalid UTF-8 input that triggers an infinite loop in the affected component. This results in resource exhaustion such as CPU and memory consumption, potentially causing the affected application to become unresponsive and unavailable. There is no impact on confidentiality or integrity reported.
Mitigation Recommendations
Red Hat has released an updated buildah package (buildah-1.44.0-3.3.hum1) that addresses CVE-2026-56852. Users of affected Red Hat Hardened Images RPMs should apply this update promptly to remediate the vulnerability. No additional mitigations are specified or required beyond applying the official update.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:49360
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- null
Threat ID: 6a74cf8ebf8831d5391aebfa
Added to database: 08/06/2026, 18:16:46 UTC
Last enriched: 08/06/2026, 18:42:32 UTC
Last updated: 08/07/2026, 01:57:41 UTC
Views: 3
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