SANS Stormcast: Daily Cyber Security News

Announcing Bitskrieg https://deadeclipse666.blogspot.com/2026/05/announcing-bitskrieg.html Vulnerability in Gogs https://www.rapid7.com/blog/post/ve-authenticated-rce-via-argument-injection-gogs-unfixed/ Oracle Critical Security Patch Update Advisory - May 2026 https://www.oracle.com/security-alerts/cspumay2026.html GlobalProtect Authentication Bypass Vulnerabilities CVE-2026-0257 https://security...

Research Review Journal https://assets.contentstack.io/v3/assets/blt83c410d686aa5f84/blt3cff46f63887f83e/research-review-journal https://www.sans.edu/cyber-research Analysis of a Year of Files Uploaded to DShield Sensors https://isc.sans.edu/diary/Analysis%20of%20a%20Year%20of%20Files%20Uploaded%20to%20DShield%20Sensors/33026 The Word 'Toad' Gave Any Website Full Control of Chrome's Most Popular V...

Reconstructing an Akira Ransomware Kill Chain from Perimeter and Endpoint Logs https://isc.sans.edu/diary/Reconstructing%20an%20Akira%20Ransomware%20Kill%20Chain%20from%20Perimeter%20and%20Endpoint%20Logs/33024 Vaultjacking: One Captured PIN, the Entire Google Password Manager Vault https://phishu.net/blogs/blog-vaultjacking-phishing-the-google-password-manager-vault-in-the-phishu-framework.html F...

Possible ACR Stealer From Page Impersonating Claude https://isc.sans.edu/diary/Possible%20ACR%20Stealer%20From%20Page%20Impersonating%20Claude/33018 Microsoft SharePoint Remote Code Execution Vulnerability CVE-2026-45659 https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-45659 Multiple Vulnerabilities in Angular Language Service VS Code Extension https://github.com/angular/angular/secu...

Microsoft Access VBA https://isc.sans.edu/diary/Microsoft%20Access%20VBA/33012 An Example of Stack String in High Level Language https://isc.sans.edu/diary/An%20Example%20of%20Stack%20String%20in%20High%20Level%20Language/33008 Cross-Platform NPM Stealer https://isc.sans.edu/diary/Cross-Platform%20NPM%20Stealer/33006 Laravel Lang Compromised with RCE Backdoor Across https://socket.dev/blog/laravel...

Selective HTTP Proxying in Linux https://isc.sans.edu/diary/Selective%20HTTP%20Proxying%20in%20Linux/33002 Megalodon: Mass GitHub Repo Backdooring via CI Workflows https://safedep.io/megalodon-mass-github-repo-backdooring-ci-workflows/ MSFT Patches Recent Windows Defender Flaws CVE-2026-41091, CVE-2026-45498, CVE-2026-45584 https://x.com/fabian_bader/status/2057198207243804881 Cisco Secure Workloa...

GitHub Breach https://x.com/github/status/2056949168208552080 Agentic Threat Intelligence Feed - VS Code Extensions https://agentmesh.knostic.ai/extensions More NGINX Vulnerabilities https://x.com/nebusecurity/status/2057071579876753643 https://my.f5.com/manage/s/article/K000161307 Microsoft Publishes YellowKey Mitigation CVE-2026-45585 https://msrc.microsoft.com/update-guide/vulnerability/CVE-202...

TeamPCP Supply Chain Campaign: Activity Through 2026-05-17 https://isc.sans.edu/diary/TeamPCP%20Supply%20Chain%20Campaign%3A%20Activity%20Through%202026-05-17/32994 https://slsa.dev/spec/v0.1/levels Github Action Compromise https://www.stepsecurity.io/blog/actions-cool-issues-helper-github-action-compromised-all-tags-point-to-imposter-commit-that-exfiltrates-ci-cd-credentials How Storm-2949 turned...

New Malware Libraries means New Signatures https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20%20New%20Malware%20Libraries%20means%20New%20Signatures/32986 Addressing Exchange Server May 2026 vulnerability CVE-2026-42897 https://techcommunity.microsoft.com/blog/exchange/addressing-exchange-server-may-2026-vulnerability-cve-2026-42897/4518498 Microsoft Authenticator Update CVE-2026-41615 https://msrc...

Tearing apart website fraud to see how it works. (@sans_edu) https://isc.sans.edu/diary/%5BGUEST%20DIARY%5D%20Tearing%20apart%20website%20fraud%20to%20see%20how%20it%20works./32958 Simple bypass of the link preview function in Outlook Junk folder https://isc.sans.edu/diary/Simple%20bypass%20of%20the%20link%20preview%20function%20in%20Outlook%20Junk%20folder/32990 NGINX Vulnerability https://depthf...

Proxying the Unproxyable? Sending EXE traffic to a Proxy https://isc.sans.edu/diary/Proxying%20the%20Unproxyable%3F%20Sending%20EXE%20traffic%20to%20a%20Proxy/32982 New Nightmare Eclipse Vulnerabilities Disclosed https://github.com/Nightmare-Eclipse/YellowKey https://github.com/Nightmare-Eclipse/GreenPlasma Adobe Patches https://helpx.adobe.com/security.html

Microsoft Patch Tuesday https://isc.sans.edu/diary/32980 Tanstack npm and others compromised https://socket.dev/blog/tanstack-npm-packages-compromised-mini-shai-hulud-supply-chain-attack Ruby Gems Attack https://x.com/maciejmensfeld/status/2054164602577940619

Apple Patches Everything https://isc.sans.edu/diary/Apple%20Patches%20Everything/32976 End-to-End Encrypted RCS Messages https://www.apple.com/newsroom/2026/05/end-to-end-encrypted-rcs-messaging-begins-rolling-out-today-in-beta/ Why we use CAPTCHAs https://isc.sans.edu/diary/Why%20we%20use%20CAPTCHAs/32974 Checkmarx Jenkins AST plugin compromise https://checkmarx.com/blog/ongoing-security-updates/

Another Universal Linux Local Privilege Escalation (LPE) Vulnerability: Dirty Frag https://isc.sans.edu/diary/Another%20Universal%20Linux%20Local%20Privilege%20Escalation%20%28LPE%29%20Vulnerability%3A%20Dirty%20Frag/32968 PAM Backdoors Steel Passwords https://flare.io/learn/resources/blog/pamdoora-new-linux-pam-based-backdoor-sale-dark-web CPanel Updates https://support.cpanel.net/hc/en-us/sectio...

An Adaptive Cyber Analytics UI for Web Honeypot Logs https://isc.sans.edu/diary/An%20Adaptive%20Cyber%20Analytics%20UI%20for%20Web%20Honeypot%20Logs%20%5BGuest%20Diary%5D/32962 Ivanti May Patchday https://hub.ivanti.com/s/article/May-2026-Security-Advisory-Ivanti-Endpoint-Manager-Mobile-EPMM-Multiple-CVEs Redis Security advisory: [CVE 2026 23479] [CVE 2026 25243] [CVE-2026-25588] [CVE 2026 25589]...

Technical issue with .de domains https://blog.denic.de/en/technical-issue-with-de-domains-resolved/ CVE-2026-0300 PAN-OS: Unauthenticated user initiated Buffer Overflow Vulnerability in User-ID Authentication Portal https://security.paloaltonetworks.com/CVE-2026-0300 Android Security Bulletin May 2026 CVE-2026-0073 https://source.android.com/docs/security/bulletin/2026/2026-05-01

Cleartext Passwords in MS Edge? In 2026? https://isc.sans.edu/diary/Cleartext%20Passwords%20in%20MS%20Edge%3F%20In%202026%3F/32954 SSL.com rotates its root certificate today https://isc.sans.edu/diary/SSL.com%20rotates%20their%20root%20certificate%20today/32956 DEAMONTOOLS Compromise https://securelist.com/tr/daemon-tools-backdoor/119654/

DShield Honeypot Update https://isc.sans.edu/diary/DShield%20Honeypot%20Update/32948 MOVEit Automation Critical Security Alert Bulletin April 2026 (CVE-2026-4670, CVE-2026-5174) https://community.progress.com/s/article/MOVEit-Automation-Critical-Security-Alert-Bulletin-April-2026-CVE-2026-4670-CVE-2026-5174 Apache httpd http2 vulnerability https://seclists.org/oss-sec/2026/q2/387

Malicious Ad for Homebrew Leads to MacSync Stealer https://isc.sans.edu/diary/Malicious%20Ad%20for%20Homebrew%20Leads%20to%20MacSync%20Stealer/32942 Wireshark Update https://www.wireshark.org/docs/relnotes/wireshark-4.6.5.html Digicert Microsoft Defender False Positive https://www.reddit.com/r/cybersecurity/comments/1t2hfsh/mde_flagging_digi_cert_certificate_as_malicious/ https://bugzilla.mozilla....

Danger of Libredtail https://isc.sans.edu/diary/Danger%20of%20Libredtail%20%5BGuest%20Diary%5D/32936 FreeBSD dhclient vulnerability https://www.freebsd.org/security/advisories/FreeBSD-SA-26:12.dhclient.asc Linux Copy-Fail Vulnerability CVE-2026-31431 https://copy.fail Bryan Nice Research Paper https://www.linkedin.com/in/bryannice/ https://www.sans.edu/cyber-research/detecting-ai-pickling

Today's Odd Web Requests https://isc.sans.edu/diary/Today%27s%20Odd%20Web%20Requests/32934 Incomplete Patch of APT28's Zero-Day Leads to CVE-2026-32202 https://www.akamai.com/blog/security-research/2026/apr/incomplete-patch-apt28s-zero-day-cve-2026-32202 Assess Secure Boot status with Microsoft Defender https://techcommunity.microsoft.com/blog/MicrosoftDefenderATPBlog/assess-secure-boot-status-wit...

HTTP Requests with X-Vercel-Set-Bypass-Cookie Header https://isc.sans.edu/diary/HTTP%20Requests%20with%20X-Vercel-Set-Bypass-Cookie%20Header/32930 GitHub Vulnerability CVE-2026-3854 https://www.wiz.io/blog/github-rce-vulnerability-cve-2026-3854 Microsoft RDP Notification Bug https://support.microsoft.com/en-us/topic/april-14-2026-kb5083768-os-build-28000-1836-839e4a25-d979-4158-b70c-182333045883

TeamPCP Update https://isc.sans.edu/diary/TeamPCP%20Supply%20Chain%20Campaign%3A%20Update%20008%20-%2026-Day%20Pause%20Ends%20with%20Three%20Concurrent%20Compromises%20%28Checkmarx%20KICS%2C%20Bitwarden%20CLI%20Cascade%2C%20xinference%20PyPI%29%2C%20CanisterSprawl%20npm%20Worm%20Identified%2C%20and%20Tier%201%20Coverage%20Returns/32926 https://socket.dev/blog/73-open-vsx-sleeper-extensions-glasswo...

Apple Patches Exploited Notification Flaw https://isc.sans.edu/diary/Apple%20Patches%20Exploited%20Notification%20Flaw/32922 Bitwarden CLI Compromised https://socket.dev/blog/bitwarden-cli-compromised https://community.bitwarden.com/t/bitwarden-statement-on-checkmarx-supply-chain-incident/96127 Microsoft Security Advisory CVE-2026-40372 ASP.NET Core Elevation of Privilege https://github.com/dotnet...

Beyond Cryptojacking: Telegram tdata as a Credential Harvesting Vector, Lessons from a Honeypot Incident https://isc.sans.edu/diary/%5BGuest%20Diary%5D%20Beyond%20Cryptojacking%3A%20Telegram%20tdata%20as%20a%20Credential%20Harvesting%20Vector%2C%20Lessons%20from%20a%20Honeypot%20Incident/32888 Checkmarx Compromise https://socket.dev/blog/checkmarx-supply-chain-compromise Oracle Quarterly Critical...