CVE-2026-39820

Well-crafted inputs reaching ParseAddress, ParseAddressList, and ParseDate were able to trigger excessive CPU exhaustion and memory allocations.
References
Link Resource
https://go.dev/cl/759940 Patch
https://go.dev/issue/78566 Issue Tracking
https://groups.google.com/g/golang-announce/c/qcCIEXso47M Issue Tracking Mailing List
https://pkg.go.dev/vuln/GO-2026-4986 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:22112
https://access.redhat.com/errata/RHSA-2026:22120
https://access.redhat.com/errata/RHSA-2026:22121
https://access.redhat.com/errata/RHSA-2026:23262
https://access.redhat.com/errata/RHSA-2026:23264
https://access.redhat.com/errata/RHSA-2026:33120
https://access.redhat.com/errata/RHSA-2026:33123
https://access.redhat.com/errata/RHSA-2026:33142
https://access.redhat.com/errata/RHSA-2026:33150
https://access.redhat.com/errata/RHSA-2026:33574
https://access.redhat.com/errata/RHSA-2026:34364
https://access.redhat.com/errata/RHSA-2026:36319
https://access.redhat.com/errata/RHSA-2026:36625
https://access.redhat.com/errata/RHSA-2026:36754
https://access.redhat.com/errata/RHSA-2026:36797
https://access.redhat.com/errata/RHSA-2026:40262
https://access.redhat.com/errata/RHSA-2026:41031
https://access.redhat.com/errata/RHSA-2026:41066
https://access.redhat.com/errata/RHSA-2026:41928
https://access.redhat.com/errata/RHSA-2026:42146
https://access.redhat.com/errata/RHSA-2026:42644
https://access.redhat.com/errata/RHSA-2026:42796
https://access.redhat.com/errata/RHSA-2026:43038
https://access.redhat.com/errata/RHSA-2026:43052
https://access.redhat.com/errata/RHSA-2026:43692
https://access.redhat.com/errata/RHSA-2026:47952
https://access.redhat.com/errata/RHSA-2026:49702
https://access.redhat.com/errata/RHSA-2026:49712
https://access.redhat.com/errata/RHSA-2026:50205
https://access.redhat.com/errata/RHSA-2026:50300
https://access.redhat.com/errata/RHSA-2026:50319
https://access.redhat.com/errata/RHSA-2026:50336
https://access.redhat.com/errata/RHSA-2026:50843
https://access.redhat.com/errata/RHSA-2026:51033
https://access.redhat.com/errata/RHSA-2026:51112
https://access.redhat.com/errata/RHSA-2026:54274
https://access.redhat.com/errata/RHSA-2026:54283
https://access.redhat.com/errata/RHSA-2026:54284
https://access.redhat.com/errata/RHSA-2026:54285
https://access.redhat.com/errata/RHSA-2026:54286
https://access.redhat.com/errata/RHSA-2026:54287
https://access.redhat.com/errata/RHSA-2026:54531
https://access.redhat.com/errata/RHSA-2026:54552
https://access.redhat.com/errata/RHSA-2026:54555
https://access.redhat.com/errata/RHSA-2026:54583
https://access.redhat.com/errata/RHSA-2026:54602
https://access.redhat.com/errata/RHSA-2026:54883
https://access.redhat.com/errata/RHSA-2026:56340
https://access.redhat.com/errata/RHSA-2026:56789
https://access.redhat.com/errata/RHSA-2026:56852
https://access.redhat.com/errata/RHSA-2026:56854
https://access.redhat.com/errata/RHSA-2026:57194
https://access.redhat.com/errata/RHSA-2026:57401
https://access.redhat.com/errata/RHSA-2026:57482
https://access.redhat.com/errata/RHSA-2026:57487
https://access.redhat.com/errata/RHSA-2026:57649
https://access.redhat.com/errata/RHSA-2026:57845
https://access.redhat.com/errata/RHSA-2026:57914
https://access.redhat.com/errata/RHSA-2026:59467
https://access.redhat.com/errata/RHSA-2026:59830
https://access.redhat.com/errata/RHSA-2026:59833
https://access.redhat.com/errata/RHSA-2026:60018
https://access.redhat.com/errata/RHSA-2026:60023
https://access.redhat.com/errata/RHSA-2026:60520
https://access.redhat.com/errata/RHSA-2026:61253
https://access.redhat.com/errata/RHSA-2026:62260
https://access.redhat.com/errata/RHSA-2026:62406
https://access.redhat.com/errata/RHSA-2026:62407
https://access.redhat.com/errata/RHSA-2026:62753
https://access.redhat.com/errata/RHSA-2026:62754
https://access.redhat.com/errata/RHSA-2026:62803
https://access.redhat.com/errata/RHSA-2026:63022
https://access.redhat.com/errata/RHSA-2026:65116
https://access.redhat.com/errata/RHSA-2026:65117
https://access.redhat.com/errata/RHSA-2026:65153
https://access.redhat.com/errata/RHSA-2026:65335
https://access.redhat.com/errata/RHSA-2026:65336
https://access.redhat.com/errata/RHSA-2026:65534
https://access.redhat.com/errata/RHSA-2026:65886
https://access.redhat.com/errata/RHSA-2026:65895
https://access.redhat.com/errata/RHSA-2026:66016
https://access.redhat.com/errata/RHSA-2026:66022
https://access.redhat.com/errata/RHSA-2026:66327
https://access.redhat.com/errata/RHSA-2026:67517
https://access.redhat.com/security/cve/CVE-2026-39820
https://bugzilla.redhat.com/show_bug.cgi?id=2467820
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-39820.json
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*
cpe:2.3:a:golang:go:*:*:*:*:*:*:*:*

History

No history.

Information

Published : 2026-05-07 20:16

Updated : 2026-09-15 12:17


NVD link : CVE-2026-39820

Mitre link : CVE-2026-39820

CVE.ORG link : CVE-2026-39820


JSON object : View

Products Affected

golang

  • go
CWE
CWE-770

Allocation of Resources Without Limits or Throttling

CWE-606

Unchecked Input for Loop Condition