CVE-2026-65653
HIGH
8,7
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Confidentiality: N/A
Integrity: N/A
Availability: N/A
Description
AI Translation Available
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.
129
Improper Validation of Array Index
DraftCommon Consequences
Security Scopes Affected:
Integrity
Availability
Confidentiality
Potential Impacts:
Dos: Crash, Exit, Or Restart
Modify Memory
Read Memory
Execute Unauthorized Code Or Commands
Applicable Platforms
Languages:
C, C++, Not Language-Specific
https://github.com/temporalio/tchannel-go/blob/8706a1ab5f617efd79dace7ab2d1d80c…
https://github.com/temporalio/tchannel-go/commit/0cb017f6870a8420695abeb9a4560d…
https://github.com/temporalio/tchannel-go/commit/1dcfa67262ecd56a24f12940f40825…
https://github.com/temporalio/tchannel-go/commit/8d8ca17342b3620d3a6d5c1a825145…
https://github.com/temporalio/tchannel-go/pull/14
https://github.com/temporalio/tchannel-go/tree/v1.22.1