CVE-2022-40468
Potential leak of left-over heap data if custom error page templates containing special non-standard variables are used.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (1.90%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Potential leak of left-over heap data if custom error page templates containing special non-standard variables are used. Tinyproxy commit 84f203f and earlier use uninitialized buffers in process_request() function.
- CVSS 3.1
- 7.5 HIGHCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 1.90% probability · 79th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-1188
- Affected
- tinyproxy project/tinyproxy
- Source
- cve@mitre.org
EPSS 1.9% since 26 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- https://github.com/tinyproxy/tinyproxyThird Party Advisory
- https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346Exploit, Third Party Advisory
- https://github.com/tinyproxy/tinyproxy/issues/457Exploit, Third Party Advisory
- https://github.com/tinyproxy/tinyproxy/issues/457#issuecomment-1264176815
- https://security.gentoo.org/glsa/202305-27
- https://github.com/tinyproxy/tinyproxyThird Party Advisory
- https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346Exploit, Third Party Advisory
- https://github.com/tinyproxy/tinyproxy/issues/457Exploit, Third Party Advisory
- https://github.com/tinyproxy/tinyproxy/issues/457#issuecomment-1264176815
- https://lists.debian.org/debian-lts-announce/2024/09/msg00035.html
- https://security.gentoo.org/glsa/202305-27
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.