reverse-captcha-eval

反向验证码：评估大语言模型对不可见Unicode指令注入的敏感性 一个评估框架，用于测试大语言模型是否会遵循嵌入在看似正常文本中的不可见Unicode编码指令。传统验证码利用的是人类能解决而机器不能的任务，而反向验证码利用的是机器能访问而人类不能的感知通道。 论文： paper/reversecaptcha.pdf 主要发现 在来自5个模型（GPT-5.2、GPT-4o-mini、Claude Opus 4、Claude Sonnet 4、Claude Haiku 4.5）的 8,308个分级输出 中： 工具使用是主要放大器...

stegcloak

StegCloak The Cloak of Invisibility for your texts StegCloak is a pure JavaScript steganography module designed in functional programming style, to hide secrets inside text by compressing and encrypting the secret before cloaking it with special unicode invisible characters. It can be used to...

SafeText

SafeText 用于净化文本的工具，通过移除零宽字符和同形异义字，确保来自匿名来源的文档能够安全分发。 试图泄露电子邮件或其他文本文件的个人，面临通过指纹识别被鉴别的风险。指纹识别通常发生在原始文档分发者嵌入了某种形式的“金丝雀”时。例如，埃隆·马斯克在2008年针对泄密事件的邮件中，为每位员工提供了略有不同的措辞。这一策略被员工识破并失败。另一种同样被使用的更简单策略，是在文本中嵌入几乎不可见的修改。SafeText旨在识别并移除这些修改。 具体来说，该工具将移除同形异义字、零宽字符以及其他隐蔽字符。该工具还会尝试识别可能暴露个人所在位置的独特单词拼写。 用法...

CVE-2021-41160

CVE-2021-41160 FreeRDP — это свободная реализация протокола удаленного рабочего стола RDP, выпущенная под лицензией Apache. В затронутых версиях вредоносный сервер может вызвать запись за пределами буфера на подключенном клиенте. Подключения, использующие GDI или SurfaceCommands для отправки...

CVE-2026-62289

libheif is a HEIF and AVIF file format decoder and encoder. In 1.23.0 and earlier, a crafted HEIF or AVIF file containing a clean aperture box can reduce an image dimension to zero and crash or corrupt tiling results when heifimagehandlegetimagetilinghandle, 1, &tiling is called...

EUVD-2026-54259

CTI-Transmute contains a stored cross-site scripting vulnerability caused by insufficient neutralization of Vue template expression delimiters in server-rendered user-controlled data. An unauthenticated attacker can create a public conversion whose name or description contains a malicious Vue...

CVE-2026-71502

CTI-Transmute contains a stored cross-site scripting vulnerability caused by insufficient neutralization of Vue template expression delimiters in server-rendered user-controlled data. An unauthenticated attacker can create a public conversion whose name or description contains a malicious Vue...

CVE-2026-70378

imagecli's pipeline operation Carve::apply in src/imageops.rs only asserts , never validating that the ratio is positive. A negative ratio e.g. -5 causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to imageproc::seamcarving::shrinkwidth —...

CVE-2026-70378 imagecli - Negative carve Ratio Bypasses Bounds Check and Crashes Process via Reachable Panic

imagecli's pipeline operation Carve::apply in src/imageops.rs only asserts , never validating that the ratio is positive. A negative ratio e.g. -5 causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to imageproc::seamcarving::shrinkwidth —...

CVE-2026-70378

imagecli's carve pipeline operation Carve::apply in src/imageops.rs only asserts ratio = 1.0, never validating that the ratio is positive. A negative ratio e.g. -5 causes the computed target width to saturate to 0 via Rust's defined float-to-uint cast, which is then passed to...

JLSEC-2026-923 ImageMagick affected by divide-by-zero in ThumbnailImage via montage -geometry ":" leads to crash

Summary Passing a geometry string containing only a colon ":" to montage -geometry leads GetGeometry to set width/height to 0. Later, ThumbnailImage divides by these zero dimensions, triggering a crash SIGFPE/abort, resulting in a denial of service. Details Root Cause 1. montage -geometry ":"...

PYSEC-2026-3004 pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. Patches This has been fixed in pypdf==6.12.0. Workarounds If developers are unable to upgrade their apps immediately, the...

pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

ImpactAn attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. PatchesThis has been fixed in pypdf==6.12.0. WorkaroundsIf developers are unable to upgrade their apps immediately, they...

GHSA-248M-82V9-Q6G6 pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. Patches This has been fixed in pypdf==6.12.0. Workarounds If developers are unable to upgrade their apps immediately, the...

pypdf: Possible long runtimes for zero-only width values in cross-reference streamsuntimes for zero-only width values in cross-reference streams

Impact An attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. Patches This has been fixed in pypdf==6.12.0. Workarounds If developers are unable to upgrade their apps immediately, the...

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156

The CVE affects the Python PDF library pypdf (prior to 6.12.0). A crafted PDF leveraging cross-reference streams with /W [0 0 0] and large /Size can cause long runtimes. Fixed in 6.12.0; remediation is to upgrade to that version or later.

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

CVE-2026-48156 pypdf: Possible long runtimes for zero-only width values in cross-reference streams

pypdf is a free and open-source pure-python PDF library. Prior to 6.12.0, an attacker who uses this vulnerability can craft a PDF which leads to long runtimes. This requires cross-reference streams with /W 0 0 0 values and large /Size values. This vulnerability is fixed in 6.12.0...

Astra Linux – Vulnerability in freerdp2

FreeRDP is a free implementation of the Remote Desktop Protocol. Clients that rely on FreeRDP before version 3.5.1 are vulnerable to out-of-bounds read attacks if nWidth == 0 and nHeight == 0. Version 3.5.1 includes a patch for this issue. There are no known workarounds available...