Hackers hide malicious payloads in 42 GitHub repositories using large files
Attackers compromised dozens of GitHub repositories by uploading large payload files to evade standard detection mechanisms.
FTMQ Security, written by our newsroom0 views

Hackers have compromised 42 third-party GitHub repositories by using oversized payload files, according to research from JFrog Security Research reported by CSO Online. Dark Reading reported that a supply chain attack campaign known as GhostAction has shifted its focus toward developer endpoints and cloud access. [1][2]
CSO Online reported that the attackers deployed payload blobs that were large enough to evade the GitHub search and API paths that are normally used to detect compromises. The underlying security protections on GitHub were not breached, but individual customer protections were compromised. CSO Online added that autonomous coding agents played a role in the incident. [2]
GitHub is a developer platform operated by Microsoft subsidiary GitHub, Inc. that provides distributed version control and project management tools, including continuous integration. [5]
Dark Reading reported that although the initial hacking wave has slowed down, attackers remain present inside GitHub environments. The shift toward developer endpoints signals potential future tactics for the cybercrime outfit. [1]
In short
- Attackers compromised 42 third-party GitHub repositories using oversized files.
- The malicious payload blobs evaded standard GitHub search and API detection tools.
- GitHub internal security protections were not breached during the attack.
- Autonomous coding agents played a role in the security compromises.
Sources
Every paragraph above points to the numbered items it rests on. Read the originals here.
- [1]GhostAction Hacking Wave Fizzles, But Attackers Lurk on in GitHubDark Reading, 6h ago (the report this story comes from)
- [2]Attackers compromised 42 GitHub repositories by using files too large to be searchedCSO Online, 22h ago
Background
- [3]List of animated specials on Wikipedia
- [4]The Lurking Fear on Wikipedia
- [5]GitHub on Wikipedia
Our newsroom writes these reports with the help of software, from the 5 sources listed and nothing else, and checks them against those sources. Facts can still be wrong or move on; the originals are the record. Spotted a mistake? Write to daniel@monsterkong.com.
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