CVE-2026-22184— zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()
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I. Basic Information for CVE-2026-22184
Vulnerability Information
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Vulnerability Title
zlib <= 1.3.1.2 untgz Global Buffer Overflow in TGZfname()
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
跨界内存写
Source: NVD (National Vulnerability Database)
Vulnerability Title
zlib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
zlib是美国Mark Adler个人开发者的一个通用的数据压缩库。 zlib 1.3.1.2及之前版本存在安全漏洞，该漏洞源于TGZfname函数存在全局缓冲区溢出，可能导致内存损坏、拒绝服务或代码执行。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| zlib software | zlib | 0 ~ 1.3.1.2 | - |
II. Public POCs for CVE-2026-22184
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IV. Related Vulnerabilities
V. Comments for CVE-2026-22184
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