{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-04-19T20:39:14.485","vulnerabilities":[{"cve":{"id":"CVE-2026-39956","sourceIdentifier":"security-advisories@github.com","published":"2026-04-13T23:16:27.653","lastModified":"2026-04-17T15:26:13.013","vulnStatus":"Undergoing Analysis","cveTags":[],"descriptions":[{"lang":"en","value":"jq is a command-line JSON processor. In commits after 69785bf77f86e2ea1b4a20ca86775916889e91c9, the _strindices builtin in jq's src/builtin.c passes its arguments directly to jv_string_indexes() without verifying they are strings, and jv_string_indexes() in src/jv.c relies solely on assert() checks that are stripped in release builds compiled with -DNDEBUG. This allows an attacker to crash jq trivially with input like _strindices(0), and by crafting a numeric value whose IEEE-754 bit pattern maps to a chosen pointer, achieve a controlled pointer dereference and limited memory read/probe primitive. Any deployment that evaluates untrusted jq filters against a release build is vulnerable. This issue has been patched in commit fdf8ef0f0810e3d365cdd5160de43db46f57ed03."}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H","baseScore":6.1,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"LOW","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":4.2}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"},{"lang":"en","value":"CWE-476"},{"lang":"en","value":"CWE-843"}]}],"references":[{"url":"https://github.com/jqlang/jq/commit/fdf8ef0f0810e3d365cdd5160de43db46f57ed03","source":"security-advisories@github.com"},{"url":"https://github.com/jqlang/jq/security/advisories/GHSA-6gc3-3g9p-xx28","source":"security-advisories@github.com"},{"url":"https://github.com/jqlang/jq/security/advisories/GHSA-6gc3-3g9p-xx28","source":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}]}}]}