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/_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.
CVE-2026-68508
This high-severity CVE scores 7.8 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (37th percentile of EPSS-scored CVEs). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- High severity, but no confirmed exploitation yet
A fix is available — apply it.
- CVSS v3
- 7.8
- EG Score
- 7.8HIGHmedium confidence
- EG Risk
- 35EG Risk 35/100CISA SSVC
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity78% × 45%Exploitation0% × 40%Automatability0% × 15%CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).Action: A fix is available. Apply it within your standard update timelines. - EPSS PROB
- 0.5%
- EPSS %ILE
- 37th
- KEV
- Not listed
CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).
A fix is available. Apply it within your standard update timelines.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table
Published
August 21, 2026
Last Modified
September 9, 2026
Advisory Details (5)
Auto-updated Aug 21, 2026Hydra 1.3.4
Patch available: hydra-ecosystem/hydra v1.3.4
https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.4commit 7faad0dcedfb (hydra-ecosystem/hydra)
Patch available: hydra-ecosystem/hydra v1.3.4 (contains commit 7faad0dcedfb)
https://github.com/hydra-ecosystem/hydra/commit/7faad0dcedfb4c0a364aa1067c0080fd6fdf8dcaHarden instantiate target blocklist
Patch available: hydra-ecosystem/hydra v1.3.4 (PR #3261 merged 2026-07-04)
https://github.com/hydra-ecosystem/hydra/pull/3261Harden instantiate blocklist for 1.3.x · Issue #3259 · hydra-ecosystem/hydra · GitHub
https://github.com/hydra-ecosystem/hydra/issues/3259hydra.utils.instantiate with untrusted config can lead to code execution · Advisory · hydra-ecosystem/hydra · GitHub
https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-2cp2-2r3c-7p7rVendor Advisories for CVE-2026-68508(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2026:70979Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cuda)
- RHSA-2026:70965Red Hat Product SecurityHigh
Red Hat Security Advisory: Red Hat AI Inference 3.4.5 (cpu)
- GHSA-2cp2-2r3c-7p7rGitHub Security AdvisoriesHigh
Hydra: hydra.utils.instantiate with untrusted config can lead to code execution
Patch Availability(2)
| Vendor / Ecosystem | Fix (by version range) / Patch | Released | Source |
|---|---|---|---|
| redhat | rhaii/vllm-cpu-rhel9:1790075793 | 2026-09-23 | redhat |
| redhat | rhaii/vllm-cuda-rhel9:1790090131 | 2026-09-23 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
PyPI(1)
| Package | Vulnerable range | Fix by version range | Dependents |
|---|---|---|---|
| hydra-core | 0.1.4 ... 1.3.3 (48 versions) |
| — |
Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 21× in last 7d / 75× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
Showing the most recent 100 of 109 total refreshes for this CVE.
- 2026-10-09 20:07 UTCEPSS rescore
- 2026-10-09 05:46 UTCEG score recompute
- 2026-10-09 05:46 UTCVendor advisory
- 2026-10-08 17:13 UTCEPSS rescore
- 2026-10-08 04:53 UTCEG score recompute
- 2026-10-08 04:53 UTCVendor advisory
- 2026-10-07 23:48 UTCEPSS rescore
- 2026-10-07 05:12 UTCVendor advisory
- 2026-10-06 16:49 UTCEG score recompute
- 2026-10-06 16:49 UTCVendor advisory
- 2026-10-06 15:18 UTCEPSS rescore
- 2026-10-06 03:03 UTCEG score recompute
- 2026-10-06 03:03 UTCVendor advisory
- 2026-10-05 17:43 UTCEPSS rescore
- 2026-10-05 09:25 UTCEG score recompute
- 2026-10-05 09:25 UTCVendor advisory
- 2026-10-04 23:22 UTCEPSS rescore
- 2026-10-04 20:48 UTCVendor advisory
- 2026-10-04 05:03 UTCVendor advisory
- 2026-10-03 16:42 UTCEG score recompute
- 2026-10-03 16:42 UTCVendor advisory
- 2026-10-03 14:26 UTCEPSS rescore
- 2026-10-02 21:34 UTCEG score recompute
- 2026-10-02 21:34 UTCVendor advisory
- 2026-10-02 17:56 UTCEPSS rescore
Show 75 moreShow fewer
- 2026-10-02 09:27 UTCVendor advisory
- 2026-10-01 21:24 UTCEG score recompute
- 2026-10-01 21:24 UTCVendor advisory
- 2026-10-01 19:50 UTCEPSS rescore
- 2026-10-01 08:29 UTCVendor advisory
- 2026-09-30 20:25 UTCEG score recompute
- 2026-09-30 20:25 UTCVendor advisory
- 2026-09-30 15:03 UTCEPSS rescore
- 2026-09-30 07:50 UTCVendor advisory
- 2026-09-29 15:40 UTCEG score recompute
- 2026-09-29 15:40 UTCVendor advisory
- 2026-09-29 02:51 UTCEG score recompute
- 2026-09-29 02:51 UTCVendor advisory
- 2026-09-28 14:47 UTCEG score recompute
- 2026-09-28 14:47 UTCVendor advisory
- 2026-09-28 13:52 UTCEPSS rescore
- 2026-09-28 02:42 UTCVendor advisory
- 2026-09-27 14:39 UTCEG score recompute
- 2026-09-27 14:39 UTCVendor advisory
- 2026-09-27 13:48 UTCEPSS rescore
- 2026-09-27 02:26 UTCEG score recompute
- 2026-09-27 02:26 UTCVendor advisory
- 2026-09-26 15:59 UTCEPSS rescore
- 2026-09-25 13:08 UTCVendor advisory
- 2026-09-25 01:06 UTCEG score recompute
- 2026-09-25 01:06 UTCVendor advisory
- 2026-09-24 13:02 UTCVendor advisory
- 2026-09-24 01:00 UTCEG score recompute
- 2026-09-23 17:54 UTCEPSS rescore
- 2026-09-23 00:53 UTCEG score recompute
- 2026-09-22 00:48 UTCEG score recompute
- 2026-09-21 21:09 UTCEPSS rescore
- 2026-09-21 00:41 UTCEG score recompute
- 2026-09-20 20:16 UTCEPSS rescore
- 2026-09-20 00:21 UTCEG score recompute
- 2026-09-19 00:14 UTCEG score recompute
- 2026-09-18 19:28 UTCEPSS rescore
- 2026-09-18 00:06 UTCEG score recompute
- 2026-09-16 23:44 UTCEG score recompute
- 2026-09-16 14:08 UTCEPSS rescore
- 2026-09-16 11:41 UTCEG score recompute
- 2026-09-16 05:15 UTCEPSS rescore
- 2026-09-15 11:14 UTCEG score recompute
- 2026-09-13 21:55 UTCEG score recompute
- 2026-09-12 21:49 UTCEG score recompute
- 2026-09-11 21:43 UTCEG score recompute
- 2026-09-11 14:53 UTCEPSS rescore
- 2026-09-11 09:40 UTCEG score recompute
- 2026-09-11 09:37 UTCEPSS rescore
- 2026-09-10 21:37 UTCEG score recompute
- 2026-09-09 01:45 UTCEG score recompute
- 2026-09-08 22:01 UTCEPSS rescore
- 2026-09-08 03:32 UTCEG score recompute
- 2026-09-07 16:01 UTCEPSS rescore
- 2026-09-06 15:23 UTCEG score recompute
- 2026-09-06 13:47 UTCEPSS rescore
- 2026-09-06 03:20 UTCEG score recompute
- 2026-09-05 15:31 UTCEPSS rescore
- 2026-09-04 15:03 UTCEG score recompute
- 2026-09-02 14:34 UTCEG score recompute
- 2026-09-02 14:12 UTCEPSS rescore
- 2026-09-01 14:19 UTCEG score recompute
- 2026-09-01 13:54 UTCEPSS rescore
- 2026-09-01 04:40 UTCEPSS rescore
- 2026-08-31 01:23 UTCEG score recompute
- 2026-08-30 19:17 UTCEPSS rescore
- 2026-08-30 13:20 UTCEG score recompute
- 2026-08-30 01:22 UTCEPSS rescore
- 2026-08-29 01:06 UTCEG score recompute
- 2026-08-28 21:42 UTCEPSS rescore
- 2026-08-27 23:36 UTCEG score recompute
- 2026-08-26 23:20 UTCEG score recompute
- 2026-08-26 14:47 UTCEPSS rescore
- 2026-08-25 23:10 UTCEG score recompute
- 2026-08-25 13:49 UTCEPSS rescore
Related CVEs(same product + same vendor + same CWE)
Same product
3 shownPyPI:hydra-core
Same vendor
10 shownredhat:RHSA-2026:70965
Frequently asked(5)
What is CVE-2026-68508?
When was CVE-2026-68508 disclosed?
Is CVE-2026-68508 actively exploited?
What is the CVSS score of CVE-2026-68508?
How do I remediate CVE-2026-68508?
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-68508
Is Your Infrastructure Affected by CVE-2026-68508?
EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.