CVE-2021-38561

golang.org/x/text/language in golang.org/x/text before 0.3.7 can panic with an out-of-bounds read during BCP 47 language tag parsing. Index calculation is mishandled. If parsing untrusted user input, this can be used as a vector for a denial-of-service attack.

• CWE-125
• CWE-125

• https://deps.dev/advisory/OSV/GO-2021-0113Patch, Third Party Advisory
• https://go.googlesource.com/text/+/383b2e75a7a4198c42f8f87833eefb772868a56fMailing List, Patch, Vendor Advisory
• https://groups.google.com/g/golang-announceMailing List, Third Party Advisory
• https://pkg.go.dev/golang.org/x/text/languageProduct, Vendor Advisory
• https://deps.dev/advisory/OSV/GO-2021-0113Patch, Third Party Advisory
• https://go.googlesource.com/text/+/383b2e75a7a4198c42f8f87833eefb772868a56fMailing List, Patch, Vendor Advisory
• https://groups.google.com/g/golang-announceMailing List, Third Party Advisory
• https://pkg.go.dev/golang.org/x/text/languageProduct, Vendor Advisory

Published

Dec 26, 2022

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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