{"answers":{"affected":"5 open source packages ship an affected version, including github.com/tomwright/dasel/v3, github.com/tomwright/dasel and github.com/tomwright/dasel/v2.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46378 exists.","fix":"Upgrade github.com/tomwright/dasel/v3 to 3.10.1 or later.","what":"CVE-2026-46378 is a medium-severity denial of service vulnerability in TomWright dasel, published on 16 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-46378 and fix it if it is affected.\n\nWhat it is: CVE-2026-46378 is a medium-severity denial of service vulnerability in TomWright dasel, published on 16 Jul 2026. It can only be exploited from the same machine or local network, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-46378 exists.\n\nAffected packages and fixed versions:\n- github.com/tomwright/dasel/v3 (Go): affected from 3.0.0; fixed in 3.10.1\n- github.com/tomwright/dasel/v3 (Go): affected from 3.0.0; fixed in 3.10.1\n- github.com/tomwright/dasel/v3 (Go): affected from 3.0.0; fixed in 3.10.1\n- github.com/tomwright/dasel (Go): affected all versions; no fix listed\n- github.com/tomwright/dasel/v2 (Go): affected all versions; no fix listed\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-2026-46378/ (Markdown: https://insights.sbomify.com/CVE-2026-46378/index.md)","id":"CVE-2026-46378","markdown":"https://insights.sbomify.com/CVE-2026-46378/index.md","name":"CVE-2026-46378","record":{"aliases":["DEBIAN-CVE-2026-46378","GHSA-m6xr-fvfg-5g64","GO-2026-5493","UBUNTU-CVE-2026-46378"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"adjacent_or_local","non_default_config":false,"product_category":"Go data transformation library","requires_auth":"none","summary":"An attacker can cause a denial of service via infinite loop in the selector lexer when processing unterminated regex literals in Dasel.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"GitHub_M","cpe":[],"cvss":{"score":6.2,"severity":"medium","source":"cna","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"cwes":[{"id":"CWE-835","name":"Loop with Unreachable Exit Condition"}],"description":"Dasel is a command-line tool and library for querying, modifying, and transforming data structures. From 3.0.0 until 3.10.1, the selector lexer matchRegexPattern closure in (*Tokenizer).parseCurRune in selector/lexer/tokenize.go loops while tokenizing an unterminated regex literal such as r/ because peekRuneEqual returns false after the end of input, allowing attacker-controlled selector strings to consume CPU indefinitely. This issue is fixed in version 3.10.1.","ecosystems":["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":"Dasel: Denial of service in dasel selector lexer due to infinite loop on unterminated regex literal","id":"CVE-2026-46378","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Go","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":5,"n_references":2,"next":{"headline":"compliance-trestle Vulnerable to SSRF in Remote Fetching Subsystem","id":"CVE-2026-46380"},"packages":[{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/tomwright/dasel","purl":"pkg:golang/github.com/tomwright/dasel","source":"GO-2026-5493"},{"ecosystem":"Go","fixed":[],"introduced":["0"],"last_affected":[],"package":"github.com/tomwright/dasel/v2","purl":"pkg:golang/github.com/tomwright/dasel/v2","source":"GO-2026-5493"},{"ecosystem":"Go","fixed":["3.10.1"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/tomwright/dasel/v3","purl":null,"source":"GHSA-m6xr-fvfg-5g64"},{"ecosystem":"Go","fixed":["3.10.1"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/tomwright/dasel/v3","purl":"pkg:golang/github.com/tomwright/dasel/v3","source":"GHSA-m6xr-fvfg-5g64"},{"ecosystem":"Go","fixed":["3.10.1"],"introduced":["3.0.0"],"last_affected":[],"package":"github.com/tomwright/dasel/v3","purl":"pkg:golang/github.com/tomwright/dasel/v3","source":"GO-2026-5493"}],"prev":{"headline":"Dasel: Index-out-of-range panic in dasel selector lexer on trailing backslash in quoted string","id":"CVE-2026-46377"},"products":["dasel"],"published":"2026-07-16","related":[],"sources":[{"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":"2026-07-17","vendors":["TomWright"]},"summary":"An attacker can cause a denial of service via infinite loop in the selector lexer when processing unterminated regex literals in Dasel.","url":"https://insights.sbomify.com/CVE-2026-46378/"}