Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-68508— Hydra: hydra.utils.instantiate with untrusted config can lead to code execution

Quick assessment

Affected
facebookresearch hydra
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hydra Ecosystem Hydra是Hydra Ecosystem组织的一个配置管理框架。 Hydra Ecosystem Hydra 1.3.4之前版本存在代码注入漏洞，该漏洞源于Hydra.utils.instantiate()通过_resolve_target()解析并调用配置选择的Python对象，允许攻击者控制目标值和参数选择危险可调用对象，可能导致执行任意代码，包括读取或修改文件和凭据或终止进程。

CVSS 7.8 · High EPSS 0.46% · P38

Affected Version Matrix 1

VendorProduct Version RangeStatus
facebookresearch hydra < 1.3.4 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-68508

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Hydra: hydra.utils.instantiate with untrusted config can lead to code execution
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
对生成代码的控制不恰当(代码注入)
Source: CVE Program / CVE List V5
Vulnerability Title
Hydra Ecosystem Hydra 代码注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hydra Ecosystem Hydra是Hydra Ecosystem组织的一个配置管理框架。 Hydra Ecosystem Hydra 1.3.4之前版本存在代码注入漏洞，该漏洞源于Hydra.utils.instantiate()通过_resolve_target()解析并调用配置选择的Python对象，允许攻击者控制目标值和参数选择危险可调用对象，可能导致执行任意代码，包括读取或修改文件和凭据或终止进程。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
facebookresearch hydra < 1.3.4 -

II. Public POCs for CVE-2026-68508

# POC Description Source Link Shenlong Link
AI-Generated POC Verified env Premium
Reproduced successfully in a real sandbox · Below is the actual recording of building the environment and exploiting the vulnerability.
Success marker: VULNERABLE: hydra-core 1.3.3 — untrusted config target "os.system" executed; retrieved proof token PROOF_c660833ca1783d4e from /proof.txt via docker exec (RCE confirmed)
Reproduction recording is a Pro+ exclusive
Watch the full sandbox build + live exploit recording for this CVE. Limited-time ¥499/mo.
Upgrade to Pro+
claude_code · 6013 chars
GitHub 复现环境（可 clone 直接跑）
Pro+ exclusive includes:
Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
In-depth vulnerability mechanism
Trigger conditions & impact
Full executable POC code
Exploit chain & mitigation
POC zip download
100+ AI POC generations per month

III. Intelligence Information for CVE-2026-68508

请登录查看更多情报信息。

Patches & Fixes for CVE-2026-68508 (3)

Vendor Advisories for CVE-2026-68508 (1)

Vendor Pages for CVE-2026-68508 (1)

IV. Related Vulnerabilities

Same product: hydra
Same vendor: facebookresearch
Same weakness: CWE-94

V. Comments for CVE-2026-68508

No comments yet

Leave a comment