CVE-2026-56852: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in golang.org/x/text golang.org/x/text/unicode/norm
A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.
AI Analysis
Technical Summary
The vulnerability identified as CVE-2026-56852 involves an infinite loop condition in the norm.Iter component of the golang.org/x/text/unicode/norm package. Specifically, when norm.Iter processes input that includes invalid UTF-8 byte sequences, it can enter a loop that never exits, causing the application to hang or become unresponsive. This is classified under CWE-835 (Loop with Unreachable Exit Condition). The affected versions are all versions before 0.39.0 of the golang.org/x/text package. No CVSS score or vendor remediation information is currently available.
Potential Impact
The impact of this vulnerability is a potential denial of service condition where an application using the affected package may hang indefinitely when processing malformed UTF-8 input. This could disrupt normal operation or cause resource exhaustion. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid processing untrusted or malformed UTF-8 input with the affected norm.Iter functionality or implement input validation to reject invalid UTF-8 sequences before processing.
CVE-2026-56852: CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop') in golang.org/x/text golang.org/x/text/unicode/norm
Description
A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.
Affected software
pkg:golang/golang.org/x/text/unicode/normRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability identified as CVE-2026-56852 involves an infinite loop condition in the norm.Iter component of the golang.org/x/text/unicode/norm package. Specifically, when norm.Iter processes input that includes invalid UTF-8 byte sequences, it can enter a loop that never exits, causing the application to hang or become unresponsive. This is classified under CWE-835 (Loop with Unreachable Exit Condition). The affected versions are all versions before 0.39.0 of the golang.org/x/text package. No CVSS score or vendor remediation information is currently available.
Potential Impact
The impact of this vulnerability is a potential denial of service condition where an application using the affected package may hang indefinitely when processing malformed UTF-8 input. This could disrupt normal operation or cause resource exhaustion. There are no known active exploits reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until an official fix is released, users should avoid processing untrusted or malformed UTF-8 input with the affected norm.Iter functionality or implement input validation to reject invalid UTF-8 sequences before processing.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Go
- Date Reserved
- 2026-06-23T15:10:49.352Z
- Cvss Version
- null
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a5fcbb52a4a8d5989ac6cc3
Added to database: 07/21/2026, 19:42:45 UTC
Last enriched: 07/21/2026, 19:53:56 UTC
Last updated: 07/21/2026, 21:09:16 UTC
Views: 5
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