CVE-2026-57577 (GCVE-0-2026-57577)
Vulnerability from cvelistv5 – Published: 2026-09-14 17:37 – Updated: 2026-09-14 17:54
VLAI
EPSS
VEX
Title
DotVVM: ReDOS in routing
Summary
DotVVM is an open source MVVM framework for web applications. Prior to 4.2.11, 4.3.15, and 5.0.0-preview09-final, a route containing multiple unconstrained parameters in one path segment can cause excessive regular-expression backtracking in DotvvmRoute.IsMatch when a remote requester supplies a long near-match path. DotvvmRouteParser.RouteRegex previously had no matching timeout. Patched runtimes retry with the .NET non-backtracking engine, while runtimes that do not support non-backtracking matching return HTTP 503 after the one-second timeout in DotvvmRoutingMiddleware. This issue is fixed in versions 4.2.11, 4.3.15, and 5.0.0-preview09-final.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-14 17:54 UTC
CWE
- CWE-1333 - Inefficient Regular Expression Complexity
Assigner
References
6 references
| URL | Tags |
|---|---|
| https://github.com/riganti/dotvvm/security/adviso… | x_refsource_CONFIRM |
| https://github.com/riganti/dotvvm/commit/1635245b… | x_refsource_MISC |
| https://github.com/riganti/dotvvm/commit/4fc26a85… | x_refsource_MISC |
| https://github.com/riganti/dotvvm/commit/5728ab80… | x_refsource_MISC |
| https://github.com/riganti/dotvvm/releases/tag/v4.3.15 | x_refsource_MISC |
| https://github.com/riganti/dotvvm/releases/tag/v5… | x_refsource_MISC |
Impacted products
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}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
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