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CVE-2026-12912— Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image

CVSS 7.3 · High EPSS 0.23% · P14

Possible ATT&CK Techniques 1AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 10

VendorProductVersion RangeStatus
Red HatRed Hat Enterprise Linux 10anyaffected
Red HatRed Hat Enterprise Linux 6anyunknown
Red HatRed Hat Enterprise Linux 7anyaffected
anyaffected
Red HatRed Hat Enterprise Linux 8anyaffected
anyaffected
anyaffected
Red HatRed Hat Enterprise Linux 9anyaffected
Red HatRed Hat Hardened Images4.7.1-2.4.hum1< *unaffected
anyunaffected
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I. Basic Information for CVE-2026-12912

Vulnerability Information
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Vulnerability Title
Libtiff: libtiff: heap-based buffer overflow via crafted pixarlog-compressed tiff image
Source: NVD (National Vulnerability Database)
Vulnerability Description
A flaw was found in libtiff. A remote attacker could exploit this vulnerability by providing a specially crafted PixarLog-compressed TIFF image. This issue occurs when decoding Pixarlog codec images with the PIXARLOGDATAFMT_8BITABGR output format and a specific stride value, leading to a heap-based buffer overflow. This could potentially result in arbitrary code execution or a denial of service (DoS).
Source: NVD (National Vulnerability Database)
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:H
Source: NVD (National Vulnerability Database)
Vulnerability Type
堆缓冲区溢出
Source: NVD (National Vulnerability Database)
Vulnerability Title
LibTIFF 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
LibTIFF是LibTIFF组织开源的一个读写TIFF(标签图像文件格式)文件的库。该库包含一些处理TIFF文件的命令行工具。 LibTIFF存在缓冲区错误漏洞，该漏洞源于解码特定输出格式和步幅值的Pixarlog编码图像时存在堆缓冲区溢出，可能导致远程攻击者通过特制的PixarLog压缩TIFF图像执行任意代码或造成拒绝服务。
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

VendorProductAffected VersionsCPESubscribe
Red HatRed Hat Hardened Images 4.7.1-2.4.hum1 ~ * cpe:/a:redhat:hummingbird:1
Red HatRed Hat Enterprise Linux 10-cpe:/o:redhat:enterprise_linux:10
Red HatRed Hat Enterprise Linux 6-cpe:/o:redhat:enterprise_linux:6
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 7-cpe:/o:redhat:enterprise_linux:7
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 8-cpe:/o:redhat:enterprise_linux:8
Red HatRed Hat Enterprise Linux 9-cpe:/o:redhat:enterprise_linux:9
Red HatRed Hat Hardened Images-cpe:/a:redhat:hummingbird:1

II. Public POCs for CVE-2026-12912

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III. Intelligence Information for CVE-2026-12912

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Patches & Fixes for CVE-2026-12912 (2)

Vendor Advisories for CVE-2026-12912 (3)

Same Patch Batch · Red Hat · 2026-06-29 · 7 CVEs total

CVE-2026-128568.8 HIGHVscode-java: vscode: command injection vulnerability in the javadoc hover provider of the
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CVE-2026-135956.8 MEDIUMUtil-linux: util-linux: heap use-after-free in libblkid nested partition probing
CVE-2026-137576.2 MEDIUMP11-kit: stack exhaustion via unbounded recursion in rpc attribute parsing
CVE-2026-579655.1 MEDIUMSpice-vdagent: integer overflow in udscs_write() leading to heap buffer overflow
CVE-2026-579664.4 MEDIUMSpice-vdagent: path traversal in file transfer via unsanitized filename

IV. Related Vulnerabilities

Same product: Red Hat Hardened Images
Same vendor: Red Hat
Same weakness: CWE-122

V. Comments for CVE-2026-12912

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