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Vulnerability record · CVE-2022-40468 · published 19 September 2022

CVE-2022-40468: Tinyproxy project tinyproxy insecure default initialization vulnerability

TTinyproxy Project · Tinyproxy

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.

7.5 CVSS 3.1 High EPSS 1.9% · top 21.3% CWE-1188 · Insecure default initialization
7.5CVSS 3.1 base score
1.9%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
11References, 4 tagged exploit
17 Jun 2026Last modified by NVD

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/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/tinyproxy/tinyproxy Third Party Advisory
https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346 ExploitThird Party Advisory
https://github.com/tinyproxy/tinyproxy/issues/457 ExploitThird Party Advisory
https://github.com/tinyproxy/tinyproxy/issues/457#issuecomment-1264176815
https://security.gentoo.org/glsa/202305-27
https://github.com/tinyproxy/tinyproxy Third Party Advisory
https://github.com/tinyproxy/tinyproxy/blob/84f203fb1c4733608c7283bbe794005a469c4b00/src/reqs.c#L346 ExploitThird Party Advisory
https://github.com/tinyproxy/tinyproxy/issues/457 ExploitThird 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

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2022-40468), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.