Google Go up to 0.38.x norm infinite loop

Summaryinfo

A vulnerability marked as problematic has been reported in Google Go up to 0.38.x. The affected element is an unknown function of the component norm. The manipulation leads to infinite loop. This vulnerability is referenced as CVE-2026-56852. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability, which was classified as problematic, has been found in Google Go up to 0.38.x. This issue affects an unknown code of the component norm. The manipulation with an unknown input leads to a infinite loop vulnerability. Using CWE to declare the problem leads to CWE-835. The product contains an iteration or loop with an exit condition that cannot be reached, i.e., an infinite loop. Impacted is availability. The summary by CVE is:

A norm.Iter can enter an infinite loop when handling input containing invalid UTF-8 bytes.

It is possible to read the advisory at go.dev. The identification of this vulnerability is CVE-2026-56852 since 06/23/2026. The exploitation is known to be easy. The attack may be initiated remotely. No form of authentication is needed for a successful exploitation. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 07/21/2026). The attack technique deployed by this issue is T1499 according to MITRE ATT&CK.

Upgrading to version 0.39.0 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

• Programming Language Software

Vendor

• Google

Name

• Go

Version

• 0.1
• 0.2
• 0.3
• 0.4
• 0.5
• 0.6
• 0.7
• 0.8
• 0.9
• 0.10
• 0.11
• 0.12
• 0.13
• 0.14
• 0.15
• 0.16
• 0.17
• 0.18
• 0.19
• 0.20
• 0.21
• 0.22
• 0.23
• 0.24
• 0.25
• 0.26
• 0.27
• 0.28
• 0.29
• 0.30
• 0.31
• 0.32
• 0.33
• 0.34
• 0.35
• 0.36
• 0.37
• 0.38

License

• open-source

Website

• Vendor: https://www.google.com/

CPE 2.3info

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CPE 2.2info

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