Issues

• JobCancelMessage carrying the request id is silently dropped; the miss is logged only at Verbose

  actions/runner#4783 · Filter by author grad-code-agent opened on Oct 14, 2026

• Linux ARM64: containerised runner 2.338.0 cannot hold a broker session (NullReferenceException in Newtonsoft deserialisation); identical binaries work natively

  actions/runner#4778 · Filter by author streambinder opened on Oct 14, 2026

• Job steps share an orphaned process group with Runner.Listener, so a step can kill the runner

  actions/runner#4775 · Filter by author thomhurst opened on Oct 12, 2026

• Windows Smart App Control blocks unsigned Runner.Worker.exe before job steps start

  actions/runner#4770 · Filter by author peterheijen2026-glitch opened on Oct 11, 2026
  1

• Job never completes: AppendLiveConsoleFeedAsync spins forever when a concurrent websocket reconnect clears _websocketClient

  actions/runner#4767 · Filter by author SchwarzschildX opened on Oct 7, 2026

• Windows: cancel on one background step interrupts every other running step

  actions/runner#4766 · Filter by author raymond-UI opened on Oct 7, 2026

• Container Hooks does not implement the -docker- variants, and this prevents customizing network name

  bug
  actions/runner#4764 · Filter by author alexrecuenco-hf opened on Oct 6, 2026

• macOS self-hosted runner: every job fails with AppleCrypto 'bad certificate format' on *.actions.githubusercontent.com (since 2026-09-23 ~10:37 UTC)

  actions/runner#4735 · Filter by author truessmann-stack opened on Sep 23, 2026

• Report rate-limit headers for runner-registration failures

  bug
  actions/runner#4732 · Filter by author wadherv opened on Sep 21, 2026

• Persistent runner drops the next job when it aborts its Busy long-poll at job completion ("was not acquired by Runner")

  actions/runner#4728 · Filter by author osazemeu opened on Sep 19, 2026
  7

• Have ephemeral JIT runners started enforcing an idle minutes limit?

  bug
  actions/runner#4726 · Filter by author enescakir opened on Sep 16, 2026
  4

• String-to-number coercion differs from Number() for uppercase base prefixes and binary strings

  actions/runner#4724 · Filter by author kjanat opened on Sep 15, 2026

• Workflow schema omits documented code-quality and copilot-requests permissions

  actions/runner#4723 · Filter by author kjanat opened on Sep 15, 2026

• Bug: self-repository references emit false validation errors in parser comparison

  actions/runner#4706 · Filter by author nobbs opened on Sep 11, 2026
  1

• View details’ on PR checks opens the wrong CI workflow

  bug
  actions/runner#4704 · Filter by author xiaoyu-work opened on Sep 11, 2026

• Runner.Listener hangs indefinitely after acknowledging a runner request, job lost with no steps and no exit

  bug
  actions/runner#4703 · Filter by author Water-Melon opened on Sep 10, 2026

• Orphan process cleanup kills mspdbsrv.exe while a job on another runner of the same machine is still compiling (C1090, PDB error 23)

  actions/runner#4702 · Filter by author danra opened on Sep 10, 2026

• Legacy ##[command] is parsed anywhere in a line (unlike ::command::), so printed third-party text can raise failure annotations and stop command processing

  actions/runner#4692 · Filter by author konard opened on Sep 9, 2026

• Runner crashes at InitializeSecretMasker on machines with Thai (th-TH) culture — culture-sensitive LastIndexOf in PowerShellPreAmpersandEscape

  actions/runner#4686 · Filter by author vitbobhon opened on Sep 9, 2026

• Queued job auto-cancelled ~1s after run start on self-hosted runner pool (no actor, no dispatch)

  actions/runner#4684 · Filter by author jperdomo opened on Sep 8, 2026

• Validation Required for Runtime Package Installation on uhg-runner

  bug
  actions/runner#4678 · Filter by author patharaviteja77-svg opened on Sep 7, 2026

• Non-ephemeral runner cancels a running job to accept a second assignment; the job is lost and reported as cancelled with all steps skipped

  actions/runner#4670 · Filter by author kefahi opened on Sep 3, 2026
  2

• Ephemeral runner hangs forever after "Acknowledging runner request": acquirejob never returns, no Runner.Worker, no error, runner never exits

  bug
  actions/runner#4668 · Filter by author perbu opened on Sep 2, 2026
  6

• actions-runner v2.337.0 container not published

  bug
  actions/runner#4659 · Filter by author Denton-L opened on Aug 26, 2026
  1

• Self-hosted runner v2.336.0 fails to register — RSAFileKeyManager.GetKey() throws SerializationException

  actions/runner#4653 · Filter by author bmealey2005-dev opened on Aug 25, 2026
  1