{"answers":{"affected":"3 open source packages ship an affected version, including github.com/hatchet-dev/hatchet.","exploited":"There is no known exploitation of CVE-2026-63342 in the wild and no public exploit code.","fix":"Upgrade github.com/hatchet-dev/hatchet to 0.91.1 or later.","what":"CVE-2026-63342 is a medium-severity missing authorization vulnerability in hatchet-dev hatchet, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-63342 and fix it if it is affected.\n\nWhat it is: CVE-2026-63342 is a medium-severity missing authorization vulnerability in hatchet-dev hatchet, published on 21 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: There is no known exploitation of CVE-2026-63342 in the wild and no public exploit code.\n\nAffected packages and fixed versions:\n- github.com/hatchet-dev/hatchet (Go): affected all versions; fixed in 0.91.1\n- github.com/hatchet-dev/hatchet (Go): affected all versions; fixed in 0.91.1\n- github.com/hatchet-dev/hatchet (Go): affected all versions; fixed in 0.91.1\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-63342/ (Markdown: https://insights.sbomify.com/CVE-2026-63342/index.md)","id":"CVE-2026-63342","markdown":"https://insights.sbomify.com/CVE-2026-63342/index.md","name":"CVE-2026-63342","record":{"aliases":["GHSA-g26x-m427-f48f","GO-2026-6567"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Hatchet workflow orchestrator","requires_auth":"low_privilege","summary":"An authenticated user can read another tenant's durable task event logs by guessing UUIDs, exposing workflow details and user messages.","user_interaction":"not_required","vuln_class":"missing_authorization"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.3,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:N/A:N","version":"3.1"},"cwes":[{"id":"CWE-863","name":"Incorrect Authorization"}],"description":"Hatchet is a platform for orchestrating background tasks, AI agents, and durable workflows at scale. Prior to 0.91.1, api-contracts/openapi/paths/v1/workflow-runs/workflow_run.yaml defines the GET /api/v1/stable/durable-tasks/{durable-task} endpoint implemented by listDurableEventLog without requiring the target tenant as a parent resource, allowing an authenticated user who obtains another tenant's durable task UUID to read that task's event log. Disclosed data can include task display names, workflow identifiers, user messages, wait conditions, branching logic, and timing information. This issue is fixed in version 0.91.1.","ecosystems":["Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":true,"headline":"Hatchet: Cross-Tenant Durable Task Event Log Disclosure via Missing Authorization Check","id":"CVE-2026-63342","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"missing_authorization","year":"2026"},"n_packages":3,"n_references":2,"next":{"headline":"Arbitrary File Read/Write: metadata.yaml symlink in image allows host filesystem access as root","id":"CVE-2026-63343"},"packages":[{"ecosystem":"Go","fixed":["0.91.1"],"introduced":["0"],"last_affected":[],"package":"github.com/hatchet-dev/hatchet","purl":null,"source":"GHSA-g26x-m427-f48f"},{"ecosystem":"Go","fixed":["0.91.1"],"introduced":["0"],"last_affected":[],"package":"github.com/hatchet-dev/hatchet","purl":"pkg:golang/github.com/hatchet-dev/hatchet","source":"GHSA-g26x-m427-f48f"},{"ecosystem":"Go","fixed":["0.91.1"],"introduced":["0"],"last_affected":[],"package":"github.com/hatchet-dev/hatchet","purl":"pkg:golang/github.com/hatchet-dev/hatchet","source":"GO-2026-6567"}],"prev":{"headline":"RabbitMQ Java client: Unvalidated Class.forName in JSON-RPC ProcedureDescription enables arbitrary class loading","id":"CVE-2026-63337"},"products":["hatchet"],"published":"2026-09-21","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CC BY 4.0","name":"Go Vulnerability Database","prefix":"GO"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-29","vendors":["hatchet-dev"]},"summary":"An authenticated user can read another tenant's durable task event logs by guessing UUIDs, exposing workflow details and user messages.","url":"https://insights.sbomify.com/CVE-2026-63342/"}