Answer in brief
CVE-2026-106442 records a High severity (CVSS 7.8) vulnerability in Hydra instantiate target blacklist bypasses permit code execution. The current sources do not mark it as known exploited. The current feed maps hydra-ecosystem/hydra (generic), hydra-core (pip), hydra-core (pip). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps hydra-ecosystem/hydra (generic), hydra-core (pip), hydra-core (pip). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| hydra-ecosystem/hydrageneric | >=1.3.4 <1.3.6 || >=1.4.0.dev0 <1.4.0.dev9 | 1.3.6, 1.4.0.dev9 |
| hydra-corepip | >=1.3.4,<1.3.6 | 1.3.6 |
| hydra-corepip | >=1.4.0.dev0,<1.4.0.dev9 | 1.4.0.dev9 |
Published upstream
Oct 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 7, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Oct 6, 2026
Hydra is a framework for elegantly configuring complex applications. From 1.3.4 until 1.3.6 and 1.4.0.dev9, the instantiate() target blacklist introduced for CVE-2026-68508 incompletely checks the effective callable selected by the target field. Execution wrappers such as timeit.timeit, executable deserialization through pickle.loads, aliases, callable-returning helpers, generic dispatch, and deferred calls can obscure or defer the effective target and bypass name-based authorization. An attacker who causes an application to instantiate untrusted Hydra configuration can use these gaps to execute code with the application's privileges. This issue is fixed in versions 1.3.6 and 1.4.0.dev9.
Quoted source text, attributed separately from HOL analysis.