CVE-2026-65653

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Source
https://cve.org/CVERecord?id=CVE-2026-65653
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65653.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-65653
Published
2026-09-21T11:36:47Z
Modified
2026-09-24T03:30:27Z
Severity
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Summary
temporalio/tchannel-go zero-chunk call fragment causes process termination
Details

github.com/temporalio/tchannel-go did not reject TChannel call fragments containing checksum metadata but no length-prefixed argument chunks. The fragment reader left its chunk slice empty and then unconditionally selected the first element. A network peer can supply such a malformed call fragment, including as a direct initial call request after completing the standard initialization handshake. On that inbound path, the resulting unrecovered Go slice-bounds panic occurs on a library-created dispatch goroutine and terminates the hosting process. This allows remote denial of service against applications that expose the listener to untrusted peers. The impact is limited to availability; no confidentiality or integrity impact was identified.

Database specific 
{
    "cna_assigner":  "Temporal",
    "cwe_ids":  [
        "CWE-129"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65653.json",
    "unresolved_ranges":  [
        {
            "extracted_events":  [
                {
                    "introduced":  "0.0.0-20150531204735-8d8ca17342b3"
                },
                {
                    "fixed":  "1.22.1-0.20260720194454-0cb017f6870a"
                }
            ],
            "source":  "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/temporalio/tchannel-go

Affected ranges

Type
GIT
Repo
https://github.com/temporalio/tchannel-go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
0cb017f6870a8420695abeb9a4560d39dadc4e2e
Fixed
1dcfa67262ecd56a24f12940f4082549190cb5d1
Fixed
8d8ca17342b3620d3a6d5c1a825145595e7588ff
Database specific
Show details 
{
    "source":  "REFERENCES"
}

Affected versions

thrift-v1.*
thrift-v1.0.0-dev
v0.*
v0.01
v1.*
v1.0.0
v1.0.1
v1.0.3
v1.0.4
v1.0.5
v1.0.6
v1.0.8
v1.0.9
v1.1.0
v1.10.0
v1.11.0
v1.12.0
v1.13.0
v1.14.0
v1.15.0
v1.16.0
v1.17.0
v1.18.0
v1.19.0
v1.19.1
v1.2.0
v1.2.1
v1.2.2
v1.2.3
v1.20.0
v1.20.1
v1.21.0
v1.21.1
v1.21.2
v1.22.0
v1.3.0
v1.4.0
v1.5.0
v1.6.0
v1.7.0
v1.8.0
v1.8.1
v1.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65653.json"