{"answers":{"affected":"It affects 1 product.","exploited":"There is no known exploitation of CVE-2021-26557 in the wild and no public exploit code.","fix":"No fix has been published for CVE-2021-26557 yet. Limit exposure of the affected software until one is available.","what":"CVE-2021-26557 is a high-severity vulnerability in Octopus Tentacle, published on 7 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link."},"fix_prompt":"Check this codebase for CVE-2021-26557 and fix it if it is affected.\n\nWhat it is: CVE-2021-26557 is a high-severity vulnerability in Octopus Tentacle, published on 7 Oct 2021. It can only be exploited from the same machine or local network, and only if a user opens a file or follows a link.\nExploitation: There is no known exploitation of CVE-2021-26557 in the wild and no public exploit code.\n\nAffected product: Octopus Tentacle. 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-2021-26557/ (Markdown: https://insights.sbomify.com/CVE-2021-26557/index.md)","id":"CVE-2021-26557","markdown":"https://insights.sbomify.com/CVE-2021-26557/index.md","name":"CVE-2021-26557","record":{"aliases":["GHSA-jjvc-94pp-59jx"],"analysis":{"component_type":"server_software","fix_type":"patch","impacts":["privilege_escalation","code_execution"],"network_reachable":"adjacent_or_local","non_default_config":true,"product_category":"Octopus Tentacle","requires_auth":"none","summary":"Unprivileged users can gain privileged access via DLL side-loading when Octopus Tentacle is installed in a custom folder with incorrect ACLs.","user_interaction":"required","vuln_class":"privilege_escalation"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"Octopus","cpe":[{"product":"tentacle","vendor":"octopus"}],"cvss":{"score":7.8,"severity":"high","source":"nvd","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","version":"3.1"},"cwes":[{"id":"CWE-426","name":"Untrusted Search Path"}],"description":"When Octopus Tentacle is installed using a custom folder location, folder ACLs are not set correctly and could lead to an unprivileged user using DLL side-loading to gain privileged access.","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":"Privilege escalation in Octopus Tentacle","id":"CVE-2021-26557","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"privilege_escalation","year":"2021"},"n_packages":0,"n_references":1,"next":{"headline":"Deserialization of Untrusted Data","id":"CVE-2021-26558"},"packages":[],"prev":{"headline":"Privilege escalation in Octopus Server","id":"CVE-2021-26556"},"products":["Octopus Tentacle"],"published":"2021-10-07","related":[{"cvss_score":7.8,"headline":"Misconfiguration in Octopus Tentacle","id":"CVE-2021-31822","kev_date_added":null,"published":"2021-11-24"},{"cvss_score":5.5,"headline":"Information disclosure in Octopus Tentacle","id":"CVE-2021-31821","kev_date_added":null,"published":"2022-01-19"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"US public information, NVD API terms","name":"NVD"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2024-08-03","vendors":["Octopus Deploy"]},"summary":"Unprivileged users can gain privileged access via DLL side-loading when Octopus Tentacle is installed in a custom folder with incorrect ACLs.","url":"https://insights.sbomify.com/CVE-2021-26557/"}