CVE-2020-26303
Last modified
CVE-2020-26303 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. insane is a whitelist-oriented HTML sanitizer. Versions 2.6.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). EPSS estimates a 0.51% chance of exploitation in the next 30 days.
Description
insane is a whitelist-oriented HTML sanitizer. Versions 2.6.2 and prior contain one or more regular expressions that are vulnerable to Regular Expression Denial of Service (ReDoS). As of time of publication, no known patches are available.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:Green
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Bevacqua | Insane | <= 2.6.2 |
References
- https://github.com/bevacqua/insane/issues/19Issue Tracking, Third Party Advisory
- https://securitylab.github.com/advisories/GHSL-2020-289-redos-insane/Exploit, Third Party Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
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How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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