CVE-2026-3945
highpriority · track · 0EPSS 0.006 · 49 %ileDEEUEPSS · scored 2026-10-28
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).
remediations
Vendor fix, mitigation, or workaround guidance, as published by each source.
A vendor fix is available.
- Fixedtinyproxy-0:1.11.3-2.1.aarch64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-2.1.ppc64le as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-2.1.s390x as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-2.1.x86_64 as component of openSUSE Tumbleweedsuse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-bp160.1.1.aarch64 as component of openSUSE Leap 16.0suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-bp160.1.1.ppc64le as component of openSUSE Leap 16.0suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-bp160.1.1.s390x as component of openSUSE Leap 16.0suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
- Fixedtinyproxy-0:1.11.3-bp160.1.1.x86_64 as component of openSUSE Leap 16.0suse_csaf
To install this SUSE Security Update use the SUSE recommended installation methods like YaST online_update or "zypper patch".
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (5)
Products and version ranges known to be affected.
advisories (3)
Vendor and ecosystem advisories describing this.
- WID-SEC-W-2026-0909Tinyproxy: Schwachstelle ermöglicht Denial of ServiceDeutsch2026-03-29csaf · cert_bundDE
Ein entfernter, anonymer Angreifer kann eine Schwachstelle in Tinyproxy ausnutzen, um einen Denial of Service Angriff durchzuführen.
- openSUSE-SU-2026:10471-1tinyproxy-1.11.3-2.1 on GA media2026-03-31csaf · suse_csafDE
tinyproxy-1.11.3-2.1 on GA media
- openSUSE-SU-2026:20456-1Security update for tinyproxy2026-04-01csaf · suse_csafDE
Security update for tinyproxy
also known as (3)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (16)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-3945cnnvd
- https://github.com/tinyproxy/tinyproxy/commit/969852ccnnvd
- https://github.com/tinyproxy/tinyproxy/commit/bb7edc4cnnvd
- https://github.com/tinyproxy/tinyproxy/issues/602cnnvd
- https://github.com/tinyproxy/tinyproxy/pull/603cnnvd
- https://github.com/tinyproxy/tinyproxy/releasescnnvd
- https://github.com/tinyproxy/tinyproxy/commit/969852cenisa_euvd
- https://github.com/tinyproxy/tinyproxy/commit/bb7edc4enisa_euvd
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