{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-48158", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-20T23:12:43.031Z", "datePublished": "2026-08-10T15:56:59.027Z", "dateUpdated": "2026-08-10T15:56:59.027Z"}, "containers": {"cna": {"title": "use-context-selector was vulnerable to malicious code execution via compromised commits", "problemTypes": [{"descriptions": [{"cweId": "CWE-506", "lang": "en", "description": "CWE-506: Embedded Malicious Code", "type": "CWE"}]}], "metrics": [{"cvssV4_0": {"attackVector": "NETWORK", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "userInteraction": "NONE", "vulnConfidentialityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 9.3, "baseSeverity": "CRITICAL", "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "version": "4.0"}}], "references": [{"name": "https://github.com/dai-shi/use-context-selector/security/advisories/GHSA-7h6v-mwq6-jhm8", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/dai-shi/use-context-selector/security/advisories/GHSA-7h6v-mwq6-jhm8"}], "affected": [{"vendor": "dai-shi", "product": "use-context-selector", "versions": [{"version": ">= 9d8481a513b7b0d1c0941b220c69b25de748641b, <= 6f2dae054ca014068bdbbb4db96006424d674124", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-08-10T15:56:59.027Z"}, "descriptions": [{"lang": "en", "value": "use-context-selector is a React useContextSelector hook in userland Between 2026-05-18 15:57:18 and 2026-05-19 15:24:34, the default branch contained malicious commits 9d8481a513b7b0d1c0941b220c69b25de748641b through 6f2dae054ca014068bdbbb4db96006424d674124 that executed remote attacker-controlled code on developer machines during\n`npm install`. The commits were removed by force-push, but local clones, forks, and direct-SHA URLs may still contain them, and `npm install` against an affected checkout will still execute the code today. The package was not published to npm. `src/install.js` was added and wired into the `postinstall` script. It fetched a JavaScript payload from an attacker-controlled HTTPS endpoint (configurable via an environment variable), disabled TLS verification, and evaluated the response as code with `require` available. Execution was deliberately skipped on CI and cloud/serverless environments, targeting developer workstations. The second-stage payload was attacker-hosted and cannot be reconstructed. Assume full compromise of anything reachable from a Node process with the user's permissions. Those who ran `npm install` against an affected checkout on a developer machine on or after 2026-05-18 15:57:18 should treat the machine as compromised, rotate every credential the machine could reach, audit account activity** since 2026-05-18 15:57:18, and clean local clones."}], "source": {"advisory": "GHSA-7h6v-mwq6-jhm8", "discovery": "UNKNOWN"}}}}

{}

{}

{}

{"created": "2026-08-10T18:00:03.742690+00:00", "updated": "2026-08-10T18:00:03.742696+00:00", "vendors": []}