CVE-2026-39820

CVE-2026-39820 relates to the Go net/mail package, specifically a quadratic string concatenation in the consumeComment path. This root cause can cause excessive CPU usage and memory allocations when parsing crafted inputs through functions like ParseAddress, ParseAddressList, and ParseDate. The p...

CVE-2026-33811 Crash when handling long CNAME response in net

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

CVE-2026-39820 Quadratic string concatentation in consumeComment in net/mail

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations...

CVE-2026-33811 Crash when handling long CNAME response in net

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

CVE-2026-39820 Quadratic string concatentation in consumeComment in net/mail

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations...

CVE-2026-42499

CVE-2026-42499 affects the net/mail package’s consumePhrase routine, where pathological inputs can trigger DoS due to quadratic string concatenation when parsing RFC 5322 email addresses. This is documented across multiple feeds (NVD, CVE list, Debian, CIRCL, OSV GO-2026-4977, vulnrichment), indi...

CVE-2026-42499 Quadratic string concatenation in consumePhrase in net/mail

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322...

CVE-2026-39836 Panic in Dial and LookupPort when handling NUL byte on Windows in net

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL 0...

CVE-2026-39836 Panic in Dial and LookupPort when handling NUL byte on Windows in net

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL 0...

CVE-2026-42499 Quadratic string concatenation in consumePhrase in net/mail

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322...

CVE-2026-33814 Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...

Uncaught Exception

Overview std/net is a Go standard library package std/net Affected versions of this package are vulnerable to Uncaught Exception. Go Vulnerability Report: The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL 0. Remediation Upgrade std/net to version...

Double Free

Overview std/net is a Go standard library package std/net Affected versions of this package are vulnerable to Double Free. Go Vulnerability Report: When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash. Remediation Upgrade...

GO-2026-4981 Crash when handling long CNAME response in net

When using LookupCNAME with the cgo DNS resolver, a very long CNAME response can trigger a double-free of C memory and a crash...

Allocation of Resources Without Limits or Throttling

Overview std/net/mail is a Go standard library package std/net/mail Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. Go Vulnerability Report: Pathological inputs could cause DoS through consumePhrase when parsing an email address according ...

Allocation of Resources Without Limits or Throttling

Overview std/net/mail is a Go standard library package std/net/mail Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling. Go Vulnerability Report: Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger...

GO-2026-4986 Quadratic string concatentation in consumeComment in net/mail

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations...

GO-2026-4977 Quadratic string concatenation in consumePhrase in net/mail

Pathological inputs could cause DoS through consumePhrase when parsing an email address according to RFC 5322...

GO-2026-4971 Panic in Dial and LookupPort when handling NUL byte on Windows in net

The Dial and LookupPort functions panic on Windows when provided with an input containing a NUL 0...

GO-2026-4918 Infinite loop in HTTP/2 transport when given bad SETTINGS_MAX_FRAME_SIZE in net/http/internal/http2 in golang.org/x/net

When processing HTTP/2 SETTINGS frames, transport will enter an infinite loop of writing CONTINUATION frames if it receives a SETTINGSMAXFRAMESIZE with a value of 0...