CVE-2026-112276— Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap
Quick assessment
Affected
Netpbm Netpbm
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
Netpbm 11.16.00 及更早版本中的 rasttopnm 组件存在堆越界读取漏洞。攻击者可通过提供包含短调色板的 Sun 光栅文件（rasterfiles），触发该漏洞以读取堆内存。攻击者可构造带有调色板的 Sun 光栅文件，使其像素字节数超过调色表长度，从而在生成的 PNM 输出中泄露最多 255 个相邻的堆字节，或导致程序崩溃。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing Application
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I. Basic Information for CVE-2026-112276
Vulnerability Information
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Vulnerability Title
Netpbm through 11.16.00 Heap Out-of-Bounds Read via rasttopnm Colormap
Source: CVE Program / CVE List V5
Vulnerability Description
Netpbm through 11.16.00 contains a heap out-of-bounds read vulnerability in rasttopnm that allows attackers to read heap memory by supplying Sun rasterfiles with short colormaps. Attackers can craft colormapped rasterfiles with pixel bytes exceeding the palette length to leak up to 255 adjacent heap bytes into the PNM output or crash the program.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存读
Source: CVE Program / CVE List V5
Affected Products
II. Public POCs for CVE-2026-112276
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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Other References for CVE-2026-112276 (5)
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https://netpbm.sourceforge.net/ product
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https://sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rasttopnm.c technical-description
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https://hackmd.io/@haindpwn/netpbm-sunraster-rle-oob-write-palette-oob-read third-party-advisory
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https://sourceforge.net/p/netpbm/code/5400/tree/advanced/converter/other/rast.c technical-description
IV. Related Vulnerabilities
Same weakness: CWE-125
-
CVE-2026-12669
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CVE-2026-112284
libaribcaption 1.1.0 through 1.1.2 Out-of-Bounds Read via De -
CVE-2026-112282
VideoLAN libbluray through 1.5.1 Out-of-Bounds Read via clpi -
CVE-2026-112279
rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_b -
CVE-2026-112278
rdesktop through 1.9.0 Heap Out-of-Bounds Read via process_r
V. Comments for CVE-2026-112276
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