{"answers":{"affected":"6 open source packages ship an affected version, including github.com/openbao/openbao and openbao.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55776 exists.","fix":"Upgrade github.com/openbao/openbao to 0.0.0-20260617104123-db57c62602b2 or later.","what":"CVE-2026-55776 is a medium-severity denial of service vulnerability in openbao, published on 15 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-2026-55776 and fix it if it is affected.\n\nWhat it is: CVE-2026-55776 is a medium-severity denial of service vulnerability in openbao, published on 15 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-55776 exists.\n\nAffected packages and fixed versions:\n- github.com/openbao/openbao (Go): affected all versions; fixed in 0.0.0-20260617104123-db57c62602b2\n- github.com/openbao/openbao (Go): affected all versions; fixed in 0.0.0-20260617104123-db57c62602b2\n- github.com/openbao/openbao (Go): affected all versions; fixed in 0.0.0-20260617104123-db57c62602b2\n- github.com/openbao/openbao (Go): affected from 0.1.0 up to 2.5.4; no fix listed\n- github.com/openbao/openbao (Go): affected from 0.1.0 up to 2.5.4; no fix listed\n- openbao (Bitnami): affected all versions; fixed in 2.5.5\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-2026-55776/ (Markdown: https://insights.sbomify.com/CVE-2026-55776/index.md)","id":"CVE-2026-55776","markdown":"https://insights.sbomify.com/CVE-2026-55776/index.md","name":"CVE-2026-55776","record":{"aliases":["BIT-openbao-2026-55776","GHSA-8w8f-r2xv-4q4j","GO-2026-5267"],"analysis":{"component_type":"server_software","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"OpenBao secrets manager","requires_auth":"low_privilege","summary":"An authenticated user with write access can crash the OpenBao server by creating an invalid asymmetric derived key, causing a denial of service.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.5,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-617","name":"Reachable Assertion"}],"description":"OpenBao is an open source identity-based secrets management system. Prior to 2.5.5, an authenticated OpenBao caller with write access to transit/keys/* could terminate the server process by setting derived to true while the type parameter selected rsa-, ecdsa-, or ed25519. The Transit policy creation path in builtin/logical/transit/backend.go and sdk/helper/keysutil/policy.go could reach an error path that double-unlocked a mutex while handling this invalid asymmetric derived-key combination, causing a panic, no HTTP response, process exit, and denial of service. JSON and HCL key-creation requests can express the triggering combination. This issue is fixed in version 2.5.5.","ecosystems":["Bitnami","Go"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"OpenBao: Transit secrets engine crashes on key creation with `derived: true` for asymmetric key types","id":"CVE-2026-55776","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Bitnami","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":6,"n_references":7,"next":{"headline":"GoAccess: Out-of-bounds heap read in parse_ios() via crafted User-Agent leads to remote crash/DoS","id":"CVE-2026-55777"},"packages":[{"ecosystem":"Bitnami","fixed":["2.5.5"],"introduced":["0"],"last_affected":[],"package":"openbao","purl":"pkg:bitnami/openbao","source":"BIT-openbao-2026-55776"},{"ecosystem":"Go","fixed":["0.0.0-20260617104123-db57c62602b2"],"introduced":["0","0.1.0"],"last_affected":[],"package":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","source":"GO-2026-5267"},{"ecosystem":"Go","fixed":["0.0.0-20260617104123-db57c62602b2"],"introduced":["0"],"last_affected":[],"package":"github.com/openbao/openbao","purl":null,"source":"GHSA-8w8f-r2xv-4q4j"},{"ecosystem":"Go","fixed":["0.0.0-20260617104123-db57c62602b2"],"introduced":["0"],"last_affected":[],"package":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","source":"GHSA-8w8f-r2xv-4q4j"},{"ecosystem":"Go","fixed":[],"introduced":["0.1.0"],"last_affected":["2.5.4"],"package":"github.com/openbao/openbao","purl":null,"source":"GHSA-8w8f-r2xv-4q4j"},{"ecosystem":"Go","fixed":[],"introduced":["0.1.0"],"last_affected":["2.5.4"],"package":"github.com/openbao/openbao","purl":"pkg:golang/github.com/openbao/openbao","source":"GHSA-8w8f-r2xv-4q4j"}],"prev":{"headline":"OpenBao's System Backend allows Unauthorized Management of the containing Namespace","id":"CVE-2026-55775"},"products":["openbao"],"published":"2026-09-15","related":[],"sources":[{"class":"attribution","licence":"Apache-2.0","name":"Bitnami","prefix":"BIT"},{"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":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-17","vendors":["openbao"]},"summary":"An authenticated user with write access can crash the OpenBao server by creating an invalid asymmetric derived key, causing a denial of service.","url":"https://insights.sbomify.com/CVE-2026-55776/"}