Catalogo CVE
CVE-2026-22184
zlib: CVE-2026-22184
- Gravità
- Medium · CVSS 4.6
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.41% · Oct 22, 2026
zlib versions up to and including 1.3.1.2 include a global buffer overflow in the untgz utility located under contrib/untgz. The vulnerability is limited to the standalone demonstration utility and does not affect the core zlib compression library. The flaw occurs when a user executes the untgz command with an excessively long archive name supplied via the command line, leading to an out-of-bounds write in a fixed-size global buffer.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | zlib | sid | 1:1.3.dfsg+really1.3.2-3 | fixed |
| Debian | zlib | forky | 1:1.3.dfsg+really1.3.2-3 | fixed |
| Debian | zlib | trixie | 1:1.3.dfsg+really1.3.1-1 | fixed |
| Debian | zlib | bookworm | 1:1.2.13.dfsg-1 | fixed |
| Cpe | zlib | Not reported | Not reported | unknown |
| Alpine | zlib | 3.20 | 1.3.2-r0 | fixed |
| Alpine | zlib | 3.21 | 1.3.2-r0 | fixed |
| Alpine | zlib | 3.22 | 1.3.2-r0 | fixed |
| Alpine | zlib | 3.23 | 1.3.2-r0 | fixed |
| Alpine | zlib | 3.24 | 1.3.2-r0 | fixed |
| Ubuntu | zsync | 16.04 | 0.6.2-1ubuntu1 | vulnerable |
| Ubuntu | zsync | 18.04 | 0.6.2-2ubuntu1 | vulnerable |
| Ubuntu | zsync | 18.04 | 0.6.2-3ubuntu1 | vulnerable |
| Ubuntu | zsync | 20.04 | 0.6.2-3ubuntu1 | vulnerable |
| Ubuntu | zsync | 22.04 | 0.6.2-3ubuntu1 | vulnerable |
| Ubuntu | zsync | 24.04 | 0.6.2-5 | vulnerable |
| Ubuntu | zsync | 24.04 | 0.6.2-5build1 | vulnerable |
| Ubuntu | zsync | 25.10 | 0.6.2-7ubuntu1 | vulnerable |
| Ubuntu | zsync | 25.10 | 0.6.2-8 | vulnerable |
| Ubuntu | zsync | 26.10 | 0.6.2-9 | vulnerable |
| Ubuntu | zsync | 26.10 | 0.6.3-2 | vulnerable |
| Ubuntu | zsync | 26.04 | 0.6.2-8 | vulnerable |
| Ubuntu | zsync | 26.04 | 0.6.2-9 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | zlib | source | sid | 1:1.2.6.dfsg-1 | unimportant | Not reported | Not reported |
| Debian | zlib | source | forky | 1:1.2.6.dfsg-1 | unimportant | Not reported | Not reported |
| Debian | zlib | source | trixie | 1:1.2.6.dfsg-1 | unimportant | Not reported | Not reported |
| Debian | zlib | source | bookworm | 1:1.2.6.dfsg-1 | unimportant | Not reported | Not reported |
| Alpine | zlib | apk | 3.20 | 1.3.2-r0 | Not reported | ALPINE-CVE-2026-22184 | Not reported |
| Alpine | zlib | apk | 3.21 | 1.3.2-r0 | Not reported | ALPINE-CVE-2026-22184 | Not reported |
| Alpine | zlib | apk | 3.22 | 1.3.2-r0 | Not reported | ALPINE-CVE-2026-22184 | Not reported |
| Alpine | zlib | apk | 3.23 | 1.3.2-r0 | Not reported | ALPINE-CVE-2026-22184 | Not reported |
| Alpine | zlib | apk | 3.24 | 1.3.2-r0 | Not reported | ALPINE-CVE-2026-22184 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [lib32z1]Corretta
Pacchetto sorgente: [zlib]
Dettagli (1)
1:1.2.13.dfsg-1· amd64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
- [lib32z1-dev]Corretta
Pacchetto sorgente: [zlib]
Dettagli (1)
1:1.2.13.dfsg-1· amd64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
- [zlib1g]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.2.13.dfsg-1· amd64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
1:1.2.13.dfsg-1· arm64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
- [zlib1g-dev]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.2.13.dfsg-1· amd64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
1:1.2.13.dfsg-1· arm64 · bookwormCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · bookworm; dsa · zlib · debian · 12
[Debian 13 (Trixie)]
- [lib32z1]Corretta
Pacchetto sorgente: [zlib]
Dettagli (1)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [lib32z1-dev]Corretta
Pacchetto sorgente: [zlib]
Dettagli (1)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [libminizip1t64]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
1:1.3.dfsg+really1.3.1-1+b1· arm64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [libminizip-dev]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
1:1.3.dfsg+really1.3.1-1+b1· arm64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [minizip]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
1:1.3.dfsg+really1.3.1-1+b1· arm64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [zlib1g]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
1:1.3.dfsg+really1.3.1-1+b1· arm64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
- [zlib1g-dev]Corretta
Pacchetto sorgente: [zlib]
Dettagli (2)
1:1.3.dfsg+really1.3.1-1+b1· amd64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
1:1.3.dfsg+really1.3.1-1+b1· arm64 · trixieCorretta · Corretta:
1:1.2.6.dfsg-1dsa · zlib · debian · 13
Osservato:
Riferimenti
- [https://cert-portal.siemens.com/productcert/csaf/ssa-470355.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-22184]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-22184]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-22184]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-22184]
- [https://security-tracker.debian.org/tracker/CVE-2026-22184]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-1203.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database]