CVE-2026-104657 (GCVE-0-2026-104657)
Vulnerability from cvelistv5 – Published: 2026-11-06 16:33 – Updated: 2026-11-09 10:39
VLAI
EPSS
VEX
Title
Missing Integrity Verification in Progress Software Fiddler Download & Setup Skill
Summary
Missing integrity verification in the Progress Software Fiddler Download and Setup Skill on Linux, macOS, and Windows which allows an attacker to compromise or influence a release component and execute attacker-controlled code when a user runs the skill. On macOS, the skill stages the package at a predictable path and installs it with administrator privileges, which may allow code execution with root privileges after user approval. A local process may also replace the staged macOS package while the skill waits for approval.
Severity
7.5 (High)
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-11-06 17:14 UTC
Assigner
ProgressSoftware
CNA
References
1 reference
| URL | Tags |
|---|---|
| https://www.telerik.com/fiddler/fiddler-everywher… | vendor-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| Progress Software | Fiddler Download & Setup Skill |
Affected:
0 , < 8.3.0
(semver)
|
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Nomenclature
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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.
Browse all ATT&CK techniques and the vulnerabilities related to each.
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