{"answers":{"affected":"","exploited":"There is no known exploitation of CVE-2026-87864 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-87864 is a vulnerability in curl, published on 20 Oct 2026."},"fix_prompt":"Check this codebase for CVE-2026-87864 and fix it if it is affected.\n\nWhat it is: CVE-2026-87864 is a vulnerability in curl, published on 20 Oct 2026. \nExploitation: There is no known exploitation of CVE-2026-87864 in the wild and no public exploit code.\n\nAffected product: curl. 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-2026-87864/ (Markdown: https://insights.sbomify.com/CVE-2026-87864/index.md)","id":"CVE-2026-87864","markdown":"https://insights.sbomify.com/CVE-2026-87864/index.md","name":"CVE-2026-87864","record":{"aliases":["ALPINE-CVE-2026-87864","AZL-109926","AZL-109980","AZL-110025","AZL-110130","AZL-110223","AZL-110313","BELL-CVE-2026-87864","CURL-CVE-2026-87864","DEBIAN-CVE-2026-87864","ECHO-1026-1737-f313","GHSA-mxp6-wxxv-r9rj","MINI-22q8-r569-39c2","MINI-f567-4mxw-rvq4","UBUNTU-CVE-2026-87864"],"analysis":null,"analysis_generated_by":null,"assigner":"curl","cpe":[],"cvss":{"score":null,"severity":null,"source":null,"vector":null,"version":null},"cwes":[],"description":"Enabling `CURLOPT_CRLF` causes curl to advertise the raw input byte count in\nthe `IMAP APPEND {N}` literal while transmitting line-ending expanded data.\nThe server reads only $N$ bytes for the payload, causing the remaining\noverflow bytes to be interpreted and executed as pipelined IMAP commands\nwithin the authenticated session.","ecosystems":[],"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":"IMAP APPEND plus CRLF conversion command injection","id":"CVE-2026-87864","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":null,"year":"2026"},"n_packages":0,"n_references":3,"next":{"headline":"knownhost callback mismatches key as missing","id":"CVE-2026-87865"},"packages":[],"prev":{"headline":"HSTS response erases persisted entries","id":"CVE-2026-87863"},"products":["curl"],"published":"2026-10-20","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"}],"ssvc":{"automatable":null,"exploitation":null,"technical_impact":null},"state":"PUBLISHED","updated":"2026-10-20","vendors":["curl"]},"summary":null,"url":"https://insights.sbomify.com/CVE-2026-87864/"}