{"answers":{"affected":"It affects 2 products.","exploited":"There is no known exploitation of CVE-2026-53422 in the wild and no public exploit code.","fix":"Upgrade to a fixed version.","what":"CVE-2026-53422 is a low-severity path traversal vulnerability in Erlang OTP, published on 2 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-53422 and fix it if it is affected.\n\nWhat it is: CVE-2026-53422 is a low-severity path traversal vulnerability in Erlang OTP, published on 2 Jul 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-2026-53422 in the wild and no public exploit code.\n\nAffected product: Erlang OTP. 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-2026-53422/ (Markdown: https://insights.sbomify.com/CVE-2026-53422/index.md)","id":"CVE-2026-53422","markdown":"https://insights.sbomify.com/CVE-2026-53422/index.md","name":"CVE-2026-53422","record":{"aliases":["AZL-95657","DEBIAN-CVE-2026-53422","EEF-CVE-2026-53422","GHSA-h9pw-h5w4-h976","RHSA-2026:35998","UBUNTU-CVE-2026-53422"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["data_read"],"network_reachable":"yes","non_default_config":false,"product_category":"Erlang OTP SSH","requires_auth":"low_privilege","summary":"Authenticated SFTP users can enumerate filesystem paths outside the configured root via a path traversal flaw in Erlang OTP's SSH module.","user_interaction":"not_required","vuln_class":"path_traversal"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[{"product":"erlang\\/otp","vendor":"erlang"},{"product":"erlang\\/ssh","vendor":"erlang"}],"cvss":{"score":2.3,"severity":"low","source":"cna","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},"cwes":[{"id":"CWE-204","name":"Observable Response Discrepancy"}],"description":"Observable Response Discrepancy vulnerability in Erlang OTP ssh (ssh_sftpd module) allows an authenticated SFTP user to enumerate the existence of files and directories outside the configured root directory.\n\nThe SSH_FXP_REALPATH handler in ssh_sftpd calls relate_file_name/3 with Canonicalize=false, unlike every other SFTP operation handler. This allows .. components in the requested path to bypass the is_within_root/2 check without being resolved. The un-canonicalized path then enters resolve_symlinks/2, which walks up the directory tree above the configured root and issues read_link() syscalls on arbitrary filesystem paths.\n\nAn authenticated SFTP client can exploit this by sending a REALPATH request with a crafted traversal path. The server response differs depending on whether the target path exists on the host filesystem (SSH_FXP_NAME when the path resolves successfully, SSH_FX_NO_SUCH_FILE when it does not). This creates a path-existence oracle that an attacker can use to enumerate the filesystem structure outside the configured root, including the existence of sensitive files, directories, and mount points.\n\nThe vulnerability leaks only the existence of paths. No file contents, credentials, or write access are obtainable through this issue alone. The information gained may assist further attacks when combined with other vulnerabilities.\n\nThis vulnerability is associated with program files lib/ssh/src/ssh_sftpd.erl and program routine ssh_sftpd:handle_op/4.\n\nThis issue affects OTP from OTP 17.0 before OTP 29.0.3, OTP 28.5.0.3 and OTP 27.3.4.14, corresponding to ssh from 3.0.1 before 6.0.2, 5.5.2.2 and 5.2.11.9.","ecosystems":["Red Hat:hummingbird:1"],"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":"SFTP REALPATH path-existence oracle allowing filesystem enumeration outside configured root","id":"CVE-2026-53422","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":null,"product":null,"products":[],"type":"path_traversal","year":"2026"},"n_packages":39,"n_references":7,"next":{"headline":"Unauthenticated denial-of-service via BEAM atom table exhaustion in membrane_mp4_plugin","id":"CVE-2026-53423"},"packages":[{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27","purl":"pkg:rpm/redhat/erlang27","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-asn1","purl":"pkg:rpm/redhat/erlang27-asn1","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-common_test","purl":"pkg:rpm/redhat/erlang27-common_test","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-compiler","purl":"pkg:rpm/redhat/erlang27-compiler","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-crypto","purl":"pkg:rpm/redhat/erlang27-crypto","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-debugger","purl":"pkg:rpm/redhat/erlang27-debugger","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-dialyzer","purl":"pkg:rpm/redhat/erlang27-dialyzer","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-diameter","purl":"pkg:rpm/redhat/erlang27-diameter","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-edoc","purl":"pkg:rpm/redhat/erlang27-edoc","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-eldap","purl":"pkg:rpm/redhat/erlang27-eldap","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-erl_interface","purl":"pkg:rpm/redhat/erlang27-erl_interface","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-erts","purl":"pkg:rpm/redhat/erlang27-erts","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-et","purl":"pkg:rpm/redhat/erlang27-et","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-eunit","purl":"pkg:rpm/redhat/erlang27-eunit","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-examples","purl":"pkg:rpm/redhat/erlang27-examples","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-ftp","purl":"pkg:rpm/redhat/erlang27-ftp","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-gdb-tools","purl":"pkg:rpm/redhat/erlang27-gdb-tools","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-inets","purl":"pkg:rpm/redhat/erlang27-inets","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-jinterface","purl":"pkg:rpm/redhat/erlang27-jinterface","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-kernel","purl":"pkg:rpm/redhat/erlang27-kernel","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-megaco","purl":"pkg:rpm/redhat/erlang27-megaco","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-mnesia","purl":"pkg:rpm/redhat/erlang27-mnesia","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-observer","purl":"pkg:rpm/redhat/erlang27-observer","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-odbc","purl":"pkg:rpm/redhat/erlang27-odbc","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-os_mon","purl":"pkg:rpm/redhat/erlang27-os_mon","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-parsetools","purl":"pkg:rpm/redhat/erlang27-parsetools","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-public_key","purl":"pkg:rpm/redhat/erlang27-public_key","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-reltool","purl":"pkg:rpm/redhat/erlang27-reltool","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-runtime_tools","purl":"pkg:rpm/redhat/erlang27-runtime_tools","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-sasl","purl":"pkg:rpm/redhat/erlang27-sasl","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-snmp","purl":"pkg:rpm/redhat/erlang27-snmp","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-ssh","purl":"pkg:rpm/redhat/erlang27-ssh","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-ssl","purl":"pkg:rpm/redhat/erlang27-ssl","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-stdlib","purl":"pkg:rpm/redhat/erlang27-stdlib","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-syntax_tools","purl":"pkg:rpm/redhat/erlang27-syntax_tools","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-tftp","purl":"pkg:rpm/redhat/erlang27-tftp","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-tools","purl":"pkg:rpm/redhat/erlang27-tools","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-wx","purl":"pkg:rpm/redhat/erlang27-wx","source":"RHSA-2026:35998"},{"ecosystem":"Red Hat:hummingbird:1","fixed":["0:27.3.4.14-1.hum1"],"introduced":["0"],"last_affected":[],"package":"erlang27-xmerl","purl":"pkg:rpm/redhat/erlang27-xmerl","source":"RHSA-2026:35998"}],"prev":{"headline":"Apache Syncope: Remote Code Execution via Scripted Connector","id":"CVE-2026-53421"},"products":["OTP"],"published":"2026-07-02","related":[{"cvss_score":9.8,"headline":"Auth bypass in n/a","id":"CVE-2022-37026","kev_date_added":null,"published":"2022-09-21"},{"cvss_score":9.8,"headline":"Memory corruption in n/a","id":"CVE-2016-10253","kev_date_added":null,"published":"2017-03-18"},{"cvss_score":9.1,"headline":"TLS 1.2 and DTLS client accepts unoffered anonymous cipher suite, bypassing server authentication","id":"CVE-2026-55953","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.8,"headline":"Stack buffer overflow in SCTP error cause parsing in inet_drv allows remote VM crash","id":"CVE-2026-49759","kev_date_added":null,"published":"2026-06-10"},{"cvss_score":8.7,"headline":"TLS/DTLS denial of service via unbounded recursion on cross-signed peer certificate chain","id":"CVE-2026-58227","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.7,"headline":"Denial of service via exponential certificate policy tree growth in path validation","id":"CVE-2026-59251","kev_date_added":null,"published":"2026-07-27"},{"cvss_score":8.7,"headline":"DTLS listener crash via race condition in dtls_packet_demux causes denial of service for all sessions","id":"CVE-2026-55950","kev_date_added":null,"published":"2026-07-02"}],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Red Hat","prefix":"RHSA"},{"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":"no","exploitation":"none","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-07-24","vendors":["Erlang"]},"summary":"Authenticated SFTP users can enumerate filesystem paths outside the configured root via a path traversal flaw in Erlang OTP's SSH module.","url":"https://insights.sbomify.com/CVE-2026-53422/"}