{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-65655 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2026-65655 yet. Limit exposure of the affected software until one is available.","what":"CVE-2026-65655 is a low-severity vulnerability in Temporal UI Server, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2026-65655 and fix it if it is affected.\n\nWhat it is: CVE-2026-65655 is a low-severity vulnerability in Temporal UI Server, published on 11 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2026-65655 in the wild and no public exploit code.\n\nAffected product: Temporal UI Server. No package-level version data is available, so check the vendor advisory linked from the reference page.\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-2026-65655/ (Markdown: https://insights.sbomify.com/CVE-2026-65655/index.md)","id":"CVE-2026-65655","markdown":"https://insights.sbomify.com/CVE-2026-65655/index.md","name":"CVE-2026-65655","record":{"aliases":["GHSA-c7mm-29xf-mmqp"],"analysis":{"component_type":"web_application","fix_type":"patch","impacts":["account_takeover","data_read"],"network_reachable":"yes","non_default_config":true,"product_category":"Temporal UI Server","requires_auth":"none","summary":"Attackers can steal OAuth cookies if TLS terminates at a proxy and traffic is downgraded, allowing account takeover within user permissions.","user_interaction":"required","vuln_class":"security_feature_bypass"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Temporal","cpe":[],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-614","name":"Sensitive Cookie in HTTPS Session Without 'Secure' Attribute"}],"description":"When OAuth authentication is enabled and browser-facing TLS terminates at a reverse proxy that forwards the callback to Temporal UI Server over HTTP, affected versions derive authentication-cookie Secure attributes from the proxy-to-server connection. Temporal UI Server can therefore issue access-token cookies, and refresh-token cookies when provided by the identity provider, without Secure even though the browser completed login over HTTPS.\n\nA victim who visits attacker-controlled content while a credential remains live may expose that credential only if the attacker can also steer traffic for the UI hostname, prevent the browser's HTTPS connection from succeeding, serve the hostname over HTTP, and read a later same-site plaintext request. A malicious website alone cannot read the cookie, and passive observation of a successful TLS connection is insufficient. Effective HSTS, a blocking HTTPS-only warning, or TLS re-encryption between the proxy and Temporal UI Server prevents the demonstrated disclosure path.\n\nA recovered credential may be replayed within the victim's assigned permissions. Refresh-token replay additionally depends on the identity provider's issuance, expiry, rotation, and reuse-detection behavior.","ecosystems":[],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"none_known"},"has_fix":false,"headline":"Temporal UI Server may set OAuth credential cookies without Secure behind a TLS-terminating reverse proxy","id":"CVE-2026-65655","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"security_feature_bypass","year":"2026"},"n_packages":0,"n_references":8,"next":{"headline":"Microsoft Office Remote Code Execution Vulnerability","id":"CVE-2026-65656"},"packages":[],"prev":{"headline":"temporalio/ringpop-go fails to enforce configured label limits on inbound membership gossip","id":"CVE-2026-65654"},"products":["Temporal UI Server"],"published":"2026-08-11","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"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":"2026-08-11","vendors":["Temporal Technologies, Inc."]},"summary":"Attackers can steal OAuth cookies if TLS terminates at a proxy and traffic is downgraded, allowing account takeover within user permissions.","url":"https://insights.sbomify.com/CVE-2026-65655/"}