CVEs / CVE-2023-49606
CVE-2023-49606: Tinyproxy Tinyproxy vulnerability
- critical 9.8 CVSS 3.1 (from the CNA)
- EPSS 80.9% chance of exploitation in the next 30 days, higher than 99% of CVEs (14 Nov 2026)
- Last changed at its sources
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Description
A use-after-free vulnerability exists in the HTTP Connection Headers parsing in Tinyproxy 1.11.1 and Tinyproxy 1.10.0. A specially crafted HTTP header can trigger reuse of previously freed memory, which leads to memory corruption and could lead to remote code execution. An attacker needs to make an unauthenticated HTTP request to trigger this vulnerability.
Affected and fixed versions
| Product | Affected | Fixed in |
|---|---|---|
| Tinyproxy Tinyproxy | 1.11.1 | — |
| Tinyproxy Tinyproxy | Tinyproxy 1.10.0 | — |
| tinyproxy tinyproxy | 1.10.0 | — |
| tinyproxy tinyproxy | 1.11.1 | — |
Exploitation
Not in the CISA Known Exploited Vulnerabilities catalog as of 13 Nov 2026.
Severity
| CVSS 3.1 | 9.8 criticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HScored by the CNA ([email protected]) |
|---|---|
| Weakness | CWE-416 |
References
- CVE-2023-49606 on NVD
- CVE-2023-49606 on OSV
- http://www.openwall.com/lists/oss-security/2024/05/07/1 Exploit, Issue Tracking, Mailing List, Patch, Third Party Advisory
- https://talosintelligence.com/vulnerability_reports/TALOS-2023-1889 Exploit, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2024/09/msg00035.html
- https://www.talosintelligence.com/vulnerability_reports/TALOS-2023-1889
Sources
Exploitation status from the CISA Known Exploited Vulnerabilities catalog. EPSS scores from FIRST. Descriptions, severity and references from the National Vulnerability Database. Open-source package versions from OSV (CC-BY 4.0). Text is shown as each source states it; Stackurity does not edit it. Check the vendor's advisory before acting.
This product uses data from the NVD API but is not endorsed or certified by the NVD.