Vulnerabilities

A critical vulnerability in the Node.js sandboxing library isolated-vm can let untrusted JavaScript break out of its sandbox and hijack the host process. Tracked as GHSA-864f-rcv7-6rh4, the flaw affects versions before 7.0.1 and 6.2.0, with fixes released August 8, 2026.

Endor Labs researchers found the bug in native C++ binding code handling data transfers between V8 Isolates. An attacker can exploit a type-confusion and TOCTOU gap in ExternalCopy's transferList option using a JavaScript getter — swapping a valid ArrayBuffer for malicious data between validation and transfer.

At minimum, this crashes the host process. At worst, it enables arbitrary code execution outside the sandbox. Upgrade immediately.

Source: Cybersecurity News

A critical GitLab vulnerability (CVE-2026-19478) is being actively exploited, and administrators of self-managed instances need to patch immediately. Rated 9.4/10, the flaw lets unauthenticated attackers inject code through GitLab's GraphQL interface — no account or user interaction required.

Attackers can delete repositories, manipulate merge records, and ban legitimate maintainers from public projects. Security firm WatchTowr reproduced the exploit within minutes of disclosure and confirmed its honeypot network recorded live exploitation attempts.

The vulnerability spans GitLab CE/EE  versions 18.2 through 18.11.10, 19.0 through 19.0.7, 19.1 through 19.1.5, and 19.2 through 19.2.3. Patched builds (18.11.11, 19.0.8, 19.1.6, 19.2.4) are available now. GitLab.com and Dedicated users are already protected. If you can't upgrade immediately, restrict GraphQL endpoint access and treat exposed servers as potentially compromised.

Source: Cybersecurity News

A critical Microsoft SharePoint Server flaw (CVE-2026-55040, CVSS 9.1) is drawing exploitation attempts after Rapid7 published proof-of-concept code on August 11, 2026. Discovered by Rapid7 senior principal researcher Stephen Fewer, it lets unauthenticated attackers forge JWT tokens and assume the identity of any SharePoint site user or administrator — no credentials needed.

Microsoft rescored its advisory from medium to critical on the day it shipped the fix. An attacker needs to know the account they're impersonating, but Rapid7's script enumerates Active Directory SIDs to find the site administrator itself. SharePoint Online isn't affected.

Worse, the bypass is half of a chain Rapid7 built for full unauthenticated remote code execution. The other half, CVE-2026-63520 (CVSS 8.1, High), was patched only on August 11, and it also hits Project Server and Office Web Apps Server — Microsoft split the fix across two cycles, so July's update closes the bypass and nothing more.

Exploitation so far is telemetry, not confirmed victims: Defused saw Rapid7's PoC fired at its SharePoint honeypots within a day, and KEVIntel sensors have logged attempts since July 19. Microsoft hasn't confirmed in-the-wild exploitation, and it isn't in CISA's KEV catalog.

Patch both. July's fix is KB5002882 (Subscription Edition, build 16.0.19725.20434), KB5002883 (Server 2019, 16.0.10417.20175) and KB5002891 (Enterprise Server 2016, 16.0.5561.1001); August's updates take those to 16.0.19725.20522, 16.0.10417.20198 and 16.0.5565.1001. If you haven't applied either, time to do it now.

Sources: The Hacker News | Rapid7

Security researcher "Ynwarcs" has published proof-of-concept exploit code for CVE-2024-38063, a critical zero-click vulnerability affecting all Windows systems with IPv6 enabled. Originally discovered by XiaoWei of Kunlun Lab, this remote code execution flaw targets Windows 10, Windows 11, and Windows Server without requiring any user interaction.

The exploit code is now available on GitHub for researchers to study, but this also increases the risk of malicious actors exploiting the vulnerability. Microsoft is urging users to install the latest security updates immediately to protect against potential attacks. Organizations should prioritize patching and monitor for unusual IPv6 packet activity.

Source: Dark Reading

Attaullah Baig, WhatsApp's former head of security, filed a federal lawsuit Monday claiming Meta endangered billions of users by ignoring critical cybersecurity flaws. Baig alleges 1,500 engineers had unrestricted access to user data without oversight, potentially violating a 2020 government order that cost Meta $5 billion.

The 115-page complaint details how over 100,000 accounts were hacked daily while executives prioritized growth over security fixes. Baig says he repeatedly warned senior leadership, including CEO Mark Zuckerberg, that engineers could steal user data "without detection."

Meta dismissed the claims as "distorted" and said Baig was fired for poor performance, not retaliation. The case adds pressure on Meta's data practices across its platforms serving billions globally.

Source: The Guardian

Salesloft disclosed that hackers gained access to its GitHub account as early as March, leading to a massive supply-chain attack that compromised hundreds of organizations in August. The threat group, tracked as UNC6395 by Google, spent months lurking in Salesloft's systems before accessing Drift's AWS environment and stealing OAuth tokens to infiltrate customer data.

The company took Drift offline Friday and rotated security credentials, but many questions remain unanswered. Salesloft hasn't explained how attackers initially accessed GitHub or obtained the OAuth tokens. Security analysts criticize the company's lack of transparency, with some suggesting Drift's reputation may be permanently damaged by the breach.

Source: CyberScoop

A critical zero-day vulnerability in Sitecore (CVE-2025-53690) is being actively exploited by attackers using exposed machine keys from old documentation. The flaw affects Sitecore Experience Manager, Platform, and Commerce products through ViewState deserialization attacks.

Mandiant discovered attackers leveraging sample machine keys that Sitecore included in deployment guides from 2017 and earlier to execute remote code on servers. This continues a troubling trend of ViewState attacks in 2024, including breaches at ConnectWise and vulnerabilities in Microsoft SharePoint.

While these attacks appear unrelated, they highlight a persistent problem: organizations using default or sample keys instead of generating secure ones. Sitecore urges customers to rotate machine keys, encrypt web.config files, and monitor for suspicious activity targeting the /sitecore/blocked.aspx page.

Source: Dark Reading

IBM disclosed a serious blind SQL injection vulnerability (CVE-2025-0165) in its Watsonx Orchestrate Cartridge for Cloud Pak Data, earning a 7.6 CVSS score. The flaw stems from improper input sanitization, allowing attackers with low-level access to inject malicious SQL commands through exposed API endpoints.

Attackers could potentially read confidential data, modify user permissions, delete critical information, or insert malicious entries into backend databases. The vulnerability affects versions 4.8.4-4.8.5 and 5.0.0-5.2.

IBM urges immediate upgrades to version 5.2.0.1, which includes strict input validation and parameterized queries. No workarounds exist, making prompt patching essential for protecting AI-driven workflows.

Source: Cyber Security News

Citrix is dealing with another security crisis as attackers actively exploit a zero-day vulnerability in its NetScaler products. The critical flaw, CVE-2025-7775, scores 9.2 out of 10 on the severity scale and allows remote attackers to hijack systems or crash them without needing credentials.

The vulnerability affects NetScaler ADC and Gateway devices used by organizations for secure remote access. Two additional flaws were also disclosed, bringing the total to three new security holes. What's particularly concerning is that nearly 20% of NetScaler devices run on unsupported, end-of-life versions that can't be patched.

This marks yet another blow for Citrix, whose NetScaler products have become a favorite target for cybercriminals. The US government currently lists 10 NetScaler vulnerabilities in its catalog of actively exploited flaws, with six discovered in just the past two years.

Source: Dark Reading

Security researcher Felix Boulet discovered a critical vulnerability in Docker Desktop that allows hackers to escape container isolation and gain complete control of Windows systems. The flaw, rated 9.3 out of 10 in severity, requires just two simple HTTP requests from any running container to exploit.

Attackers can mount the entire C: drive into a privileged container, essentially giving them full access to the host system. The vulnerability works regardless of security settings and affects both Windows and macOS systems, though Linux remains unaffected.

Docker has released a patch in version 4.44.3. Users should update immediately to protect their systems from potential attacks.

Source: Cybernews