EUVD-2026-29326

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

CVE-2026-42046

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

CVE-2026-42046 libcaca: Heap OOB write in canvas import functions caused by int overflow

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

CVE-2026-42046

CVE-2026-42046 affects the libcaca library (canvas import function). An integer overflow in 0.99.beta20 and earlier allows a crafted file in the “caca” format to trigger a controlled heap out-of-bounds write, causing memory corruption and potentially remote code execution depending on build confi...

CVE-2026-42046

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

CVE-2026-42046 libcaca: Heap OOB write in canvas import functions caused by int overflow

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

CVE-2026-42046 libcaca: Heap OOB write in canvas import functions caused by int overflow

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

A week in security (May 4 – May 10)

Last week on Malwarebytes Labs: Microsoft says Edge’s plaintext password behavior is "by design" ShinyHunters escalates Canvas attacks with school login defacements Massive AI investment scam network spans 15,500 domains If a fake moustache can fool age checks, is the Online Safety Act working?...

PT-2026-39852

Name of the Vulnerable Software and Affected Versions libcaca versions 0.99.beta20 and earlier Description An integer overflow in the canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format...

Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

libcaca 安全漏洞

libcaca is an open-source software library developed by cacalabs. It allows for converting images into color ASCII art. Versions of libcaca 0.99.beta20 and earlier contain security vulnerabilities. These vulnerabilities stem from integer overflows in the canvas import function. Attackers could...

CVE-2026-42046: Heap-based Buffer Overflow

libcaca is a colour ASCII art library. In 0.99.beta20 and earlier, an integer overflow vulnerability in libcaca's canvas import functionality allows an attacker to cause a controlled heap out-of-bounds write heap overflow by supplying a crafted file in the "caca" format. Depending on the build...

ALSA-2026:15892 Important: thunderbird security update

Mozilla Thunderbird is a standalone mail and newsgroup client. Security Fixes: firefox: thunderbird: Incorrect boundary conditions in the Libraries component in NSS CVE-2026-6772 firefox: thunderbird: Use-after-free in the JavaScript Engine component CVE-2026-6754 firefox: thunderbird: Spoofing...

What Is the Instructure Canvas Breach? Impact, Risks, and What Institutions Should Do

The Instructure Canvas breach affects universities, K–12 school districts, and teaching hospitals globally. This blog entry intends to provide context and practical guidance...

MGASA-2026-0124 Updated rootcerts, nss & firefox packages fix security vulnerabilities

Use-after-free in the DOM: Core & HTML component. CVE-2026-6746 Use-after-free in the WebRTC component. CVE-2026-6747 Uninitialized memory in the Audio/Video: Web Codecs component. CVE-2026-6748 Information disclosure due to uninitialized memory in the Graphics: Canvas2D component. CVE-2026-6749...

CVE-2026-7977

An inappropriate implementation flaw was found in the Canvas component of the Chromium browser. Upstream bugs: https://code.google.com/p/chromium/issues/detail?id=497821223...

ShinyHunters escalates Canvas attacks with school login defacements

Days after confirming a major data breach, Instructure is now facing a second blow. Earlier this week, Instructure confirmed a major data breach affecting its cloud‑hosted Canvas environment, with the ShinyHunters group claiming it stole hundreds of millions of records tied to thousands of school...

The Canvas Hack Is a New Kind of Ransomware Debacle

Thousands of schools around the US were paralyzed on Thursday after education tech firm Instructure shut down access to its Canvas platform following a breach by hackers going by the name ShinyHunters...

Canvas Breach Disrupts Schools & Colleges Nationwide

An ongoing data extortion attack targeting the widely-used education technology platform Canvas disrupted classes and coursework at school districts and universities across the United States today, after a cybercrime group defaced the service's login page with a ransom demand that threatened to...

SUSE CVE-2026-7977

Inappropriate implementation in Canvas in Google Chrome prior to 148.0.7778.96 allowed a remote attacker to bypass same origin policy via a crafted HTML page. Chromium security severity: Medium...