{"id":"CVE-2026-68508","title":"Hydra is a framework for elegantly configuring complex applications","summary":"Hydra is a framework for elegantly configuring complex applications. Prior to 1.3.4, hydra.utils.instantiate() resolves and calls Python objects selected by configuration through _resolve_target() in hydra/_internal/instantiate/_instanti…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","cwe":["CWE-94","CWE-470"],"vendor":"hydra-core","product":"hydra-core","affected":["hydra-core <= 1.3.3"],"patched":["hydra-core 1.3.4"],"published":"2026-08-21","updated":"2026-09-09","sourceUpdated":"2026-09-09T21:06:39.057","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-68508","references":[{"url":"https://github.com/hydra-ecosystem/hydra/commit/7faad0dcedfb4c0a364aa1067c0080fd6fdf8dca","label":"security-advisories@github.com"},{"url":"https://github.com/hydra-ecosystem/hydra/issues/3259","label":"security-advisories@github.com"},{"url":"https://github.com/hydra-ecosystem/hydra/pull/3261","label":"security-advisories@github.com"},{"url":"https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.4","label":"security-advisories@github.com"},{"url":"https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-2cp2-2r3c-7p7r","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-2cp2-2r3c-7p7r"},{"url":"https://github.com/hydra-ecosystem/hydra"},{"url":"https://pypi.org/project/hydra-core"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-68508"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68508.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-68508"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2521165"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-68508"},{"url":"https://access.redhat.com/errata/RHSA-2026:70965"},{"url":"https://access.redhat.com/errata/RHSA-2026:70979"}],"tags":["nvd","ghsa","pip","osv","csaf","vex","red-hat"],"epss":0.00252,"epssPercentile":0.16968,"aliases":["GHSA-2cp2-2r3c-7p7r","PYSEC-2026-3850"],"ecosystem":"pip","ingestedAt":"2026-08-21T21:22:19.355Z","slug":"CVE-2026-68508","body":"## Overview\n\nHydra is a framework for elegantly configuring complex applications. Prior to 1.3.4, hydra.utils.instantiate() resolves and calls Python objects selected by configuration through _resolve_target() in hydra/_internal/instantiate/_instantiate2.py, allowing attacker-controlled target values and arguments to choose dangerous callables. A consuming application, library, CLI workflow, or model loader that passes untrusted configuration, CLI overrides, or model metadata into hydra.utils.instantiate() can therefore execute arbitrary code in its own process, including reading or modifying files and credentials or terminating the process. Version 1.3.4 adds target blocking with an explicit HYDRA_INSTANTIATE_ALLOWLIST_OVERRIDE escape hatch. This issue is fixed in version 1.3.4.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-68508)\n\nAffected packages:\n\n- `hydra-core <= 1.3.3`\n\nPatched in:\n\n- `hydra-core 1.3.4`\n\nSource: https://github.com/advisories/GHSA-2cp2-2r3c-7p7r\n\n## Vendor advisories\n\n- **RHSA-2026:70965** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70965)\n- **RHSA-2026:70979** · Red Hat · fixed in: Red Hat AI Inference Server 3.4 · released 2026-09-23 · [advisory](https://access.redhat.com/errata/RHSA-2026:70979)","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}