CVE-2026-3945

See a problem?
Please try reporting it to the source first.
Source
https://cve.org/CVERecord?id=CVE-2026-3945
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3945.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-3945
Downstream
DEBIAN (1)
openSUSE (2)
UBUNTU (1)
Related
openSUSE (2)
Published
2026-03-30T07:05:23Z
Modified
2026-10-21T02:57:00Z
Severity
  • 8.7 (High) CVSS_V4 - 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 CVSS Calculator
Summary
tinyproxy Integer Overflow in HTTP Chunked Transfer-Encoding Parser Leading to Denial of Service
Details

An integer overflow vulnerability in the HTTP chunked transfer encoding parser in tinyproxy up to and including version 1.11.3 allows an unauthenticated remote attacker to cause a denial of service (DoS). The issue occurs because chunk size values are parsed using strtol without properly validating overflow conditions (e.g., errno == ERANGE).

Database specific 
{
    "cna_assigner":  "TuranSec",
    "cwe_ids":  [
        "CWE-190"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3945.json"
}
References

Affected packages

Git / github.com/tinyproxy/tinyproxy

Affected ranges

Type
GIT
Repo
https://github.com/tinyproxy/tinyproxy
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
969852c
Fixed
bb7edc4
Database specific
Show details 
{
    "extracted_events":  [
        {
            "range":  [
                {
                    "introduced":  "0"
                },
                {
                    "last_affected":  "1.11.3"
                }
            ],
            "source":  "AFFECTED_FIELD",
            "strategy":  "StringRangeExpression"
        },
        {
            "range":  [
                {
                    "fixed":  "969852c"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        },
        {
            "range":  [
                {
                    "fixed":  "bb7edc4"
                }
            ],
            "source":  "REFERENCES_COMMIT"
        }
    ]
}

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-3945.json"