Files
vuln-cve/data/2026/39xxx/CVE-2026-39956.json
T

153 lines
6.3 KiB
JSON

{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-39956",
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"state": "PUBLISHED",
"assignerShortName": "GitHub_M",
"dateReserved": "2026-04-07T22:40:33.822Z",
"datePublished": "2026-04-13T22:10:18.817Z",
"dateUpdated": "2026-09-04T13:29:32.969Z"
},
"containers": {
"cna": {
"title": "jq: Missing runtime type checks for _strindices lead to crash and limited memory disclosure",
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-125",
"lang": "en",
"description": "CWE-125: Out-of-bounds Read",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-476",
"lang": "en",
"description": "CWE-476: NULL Pointer Dereference",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-843",
"lang": "en",
"description": "CWE-843: Access of Resource Using Incompatible Type ('Type Confusion')",
"type": "CWE"
}
]
}
],
"metrics": [
{
"cvssV3_1": {
"attackComplexity": "LOW",
"attackVector": "LOCAL",
"availabilityImpact": "HIGH",
"baseScore": 6.1,
"baseSeverity": "MEDIUM",
"confidentialityImpact": "LOW",
"integrityImpact": "NONE",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "REQUIRED",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H",
"version": "3.1"
}
}
],
"references": [
{
"name": "https://github.com/jqlang/jq/security/advisories/GHSA-6gc3-3g9p-xx28",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/jqlang/jq/security/advisories/GHSA-6gc3-3g9p-xx28"
},
{
"name": "https://github.com/jqlang/jq/commit/fdf8ef0f0810e3d365cdd5160de43db46f57ed03",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/jqlang/jq/commit/fdf8ef0f0810e3d365cdd5160de43db46f57ed03"
}
],
"affected": [
{
"vendor": "jqlang",
"product": "jq",
"versions": [
{
"version": "< 1.8.2",
"status": "affected"
}
]
}
],
"providerMetadata": {
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M",
"dateUpdated": "2026-09-04T13:29:32.969Z"
},
"descriptions": [
{
"lang": "en",
"value": "jq is a command-line JSON processor. Prior to version 1.8.2, 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, which is part of version 1.8.2."
}
],
"source": {
"advisory": "GHSA-6gc3-3g9p-xx28",
"discovery": "UNKNOWN"
}
},
"adp": [
{
"references": [
{
"url": "https://github.com/jqlang/jq/security/advisories/GHSA-6gc3-3g9p-xx28",
"tags": [
"exploit"
]
}
],
"metrics": [
{
"other": {
"type": "ssvc",
"content": {
"timestamp": "2026-04-14T15:34:20.696741Z",
"id": "CVE-2026-39956",
"options": [
{
"Exploitation": "poc"
},
{
"Automatable": "no"
},
{
"Technical Impact": "partial"
}
],
"role": "CISA Coordinator",
"version": "2.0.3"
}
}
}
],
"title": "CISA ADP Vulnrichment",
"providerMetadata": {
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP",
"dateUpdated": "2026-04-14T16:28:19.908Z"
}
}
]
}
}