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GitHub nukes 70+ Microsoft repos, breaks CI/CD pipelines, following suspected worm infections

8 June 2026 at 13:56
Microsoft’s GitHub temporarily disabled over 70 repositories after they were reportedly compromised by a worm in the latest open source supply chain attack. The code shack took down 73 repos within the space of 105 seconds after its alarms were tripped on Friday, June 5, after detecting signs of the Miasma worm infecting its projects, according to StepSecurity’s co-founder and CTO, Ashish Kurmi. “Our priority is to protect customers and the broader ecosystem. We temporarily removed some repositories as we investigated potential malicious content," a Microsoft spokesperson told us on Wednesday, two days after this story was originally published. "All of these repos have been restored after review. As part of our investigation, we notified a small number of customers who may have pulled down content from the affected repositories. We will continue to investigate, and if anything further is identified that requires customer action, we will reach out directly through our established support channels.” Users reported issues quickly on Friday, after visits to those repos all resulted in the same message displayed, indicating that they had been disabled due to terms of service violations. According to StepSecurity’s analysis, the attack kicked off after a compromised contributor account pushed a malicious commit to Azure/durabletask. The commit dropped configuration files that triggered remote code execution on machines when a developer opened the repo in an IDE or AI coding tool, such as Claude Code, Gemini CLI, and Cursor. Several developers soon reported broken CI/CD pipelines, a support thread showed, although a moderator said at the time this was due to “an internal management issue.” "The repo that most immediately caused issues was Azure/functions-action,” Kurmi wrote, used to deploy code to Azure. With it being taken down, every workflow that referenced Azure/functions-action@v1 stopped resolving. GitHub stepped in a few hours after the repos were infected by the malicious commit. Its automated detections kicked in and disabled the repos in under two minutes, in two separate waves. However, it was the borking of the durabletask family that hinted at the bigger picture, that the attack was indeed a re-opening of the previous Miasma worm attack that hit Microsoft last month. Microsoft’s durabletask PyPi package was a previous target of the Miasma worm on May 19. Within a 35-minute window, three versions of the package were uploaded to PyPi, which planted infostealers on developers’ machines, specifically sniffing out cloud secrets and developer tool configurations on Linux systems. Crucially, the re-targeting of durabletask suggests the tokens associated with the compromised developer account used to execute the PyPi attack were not fully rotated, allowing an attacker to gain access and push commits to GitHub, Kurmi said. It was either that, or the contributor was re-compromised through the worm's own propagation loop, or a different contributor's token was used but the attacker altered the metadata to make it look like a repeated attack. Security shop Snyk described Miasma as a descendant of the Mini Shai Hulud worm. It’s the same one that ravaged open source packages over at the npm registry, including Red Hat’s, earlier this month. Cybercrime group TeamPCP claimed responsibility for developing Mini Shai Hulud, which itself is named after an earlier worm of the same name, sans “mini.” However, because TeamPCP open-sourced Mini Shai Hulud, it’s difficult to tell whether it was also behind Miasma or if someone else took the reins on the follow-up project. StepSecurity also reported that two days before the Microsoft attack, the same worm was making a nuisance of itself at npm, compromising more than 50 packages, including a Vapi.ai SDK with more than 408,000 monthly downloads.® Updated on June 10 with new comment from Microsoft and the fact that the repos have now been restored.

NSO Group back in Meta's crosshairs after alleged WhatsApp targeting

8 June 2026 at 12:10
Meta has asked a federal judge to hold Israeli spyware maker NSO Group in contempt of court after claiming it caught the surveillance vendor targeting WhatsApp users again despite a permanent injunction ordering it to stop. In a blog post on Monday, Meta said it had disrupted "NSO-linked social engineering attempts" after investigating reports from users. According to the company, the activity involved attempts to lure targets into clicking malicious links that redirected them to websites outside WhatsApp, as well as the creation of test accounts and groups on the messaging platform. "We successfully disrupted NSO-linked social engineering attempts after investigating user reports," Meta said. "They tried to trick people into clicking on malicious links to drive them to external websites outside of WhatsApp, similar to previously reported 1-click phishing campaigns linked to NSO." WhatsApp also published a handful of domains it linked to the campaign, including ikhwancast[.]com, ghazacast[.]com, and fr24cast[.]com, and said it was releasing indicators to help organizations identify related activity. The move marks the latest chapter in the long-running legal battle between Meta and the Israeli spyware maker. A US court found NSO liable in December 2024 for hacking WhatsApp users via its Pegasus spyware. In May 2025, a jury awarded Meta roughly $168 million in damages, but the judge later cut that to $4 million while issuing a permanent injunction barring NSO from targeting WhatsApp or its users. Meta, however, says NSO didn't get the memo. "Last year, WhatsApp made history by securing a landmark verdict and permanent injunction barring NSO Group ... from targeting WhatsApp and its users ever again," the company wrote. "Today, we're asking the court to hold them in contempt of that order." The company provided few technical details about the activity, such as when it occurred, how many users were targeted, whether any compromises were successful, or how it attributed the operation to NSO. Meta did not respond to The Register’s questions. However, the blog post adopts a hard line on the spyware industry than previous updates, repeatedly describing commercial spyware as a national security issue. "When a malicious company on the US government's Entity List continues to defy US courts, existing restrictions must remain firmly in place," WhatsApp wrote. "Easing them would undermine US national security and put American companies and billions of people worldwide who depend on secure communications at risk." If Meta's allegations are accurate, the episode suggests that a court loss is not enough to persuade a spyware vendor to leave a high-value target alone. ®

Oxford Uni student data pwned yet again - this time via career platform breach

6 June 2026 at 07:28
Oxford University students seeking work will be dismayed to learn that crooks have breached a second external platform provider for the university in as many months. The institution’s CareerConnect platform, provided by Group GTI, was the target of the intrusion, which exposed users’ full names and email addresses. Those who don’t use single sign-on (SSO) had their encrypted passwords leaked, too. CareerConnect forms part of Oxford University’s career services department, supporting students and alumni to find work opportunities. It is available to students, alumni, research staff, and recruiters. The same underlying technology powering the platform, which GTI markets as TargetConnect, is used by other universities in the UK and overseas, according to its website. OxfordUni said the May 28 attack was enabled by a “security vulnerability,” which has since been fixed. GTI has not publicly disclosed the security snafu itself, and did not respond to our requests for more information. The London-based tech company has not confirmed how many individuals were affected by the break-in, nor whether any data was stolen. It has also not explicitly stated which types of individuals were affected, although Oxford’s announcement listed “alumni, research staff, and employer users” as those who had their passwords forcibly reset following the attack. “There is no evidence that course information, uploaded files, appointment information, or financial information were involved in this incident,” the announcement went on to say. “GTI has stated this breach appeared to be focused on gathering credentials which may lead to phishing attempts.” The university did not list current students as among those affected, but told student newspaper Cherwell that names and email addresses might be compromised, and said the attack was entirely separate from the one which hit Instructure’s Canvas last month. Twice bitten Oxford University was just one of the circa 8,800 educational institutions affected by the mega breach at Canvas, a separate platform that’s also relied upon by schools, colleges, and universities. Seemingly timed by ShinyHunters to coincide with exam season, students across multiple countries were left without access to learning materials, tests, and grades at a pivotal time of the year. The scale of the attack was vast, affecting the usernames, email addresses, course names, enrollment information, and messages of up to 275 million students, teachers, and staff. The severity of the situation, coupled with the inopportune timing, led to Instructure “reaching an agreement” with ShinyHunters to prevent the criminal gang from leaking all the data online. In cyberese, this implies Instructure paid the criminals an extortion fee in exchange for their word that they would delete the stolen data. "We received digital confirmation of data destruction (shred logs)," Instructure said, adding "We have been informed that no Instructure customers will be extorted as a result of this incident, publicly or otherwise." ®

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