{"id":12935,"date":"2026-05-17T10:03:42","date_gmt":"2026-05-17T10:03:42","guid":{"rendered":"https:\/\/serisec.com\/index.php\/2026\/05\/17\/grafana-labs-security-breach-hackers-access-github-and-download-codebase\/"},"modified":"2026-05-17T10:03:42","modified_gmt":"2026-05-17T10:03:42","slug":"grafana-labs-security-breach-hackers-access-github-and-download-codebase","status":"publish","type":"post","link":"https:\/\/serisec.com\/index.php\/2026\/05\/17\/grafana-labs-security-breach-hackers-access-github-and-download-codebase\/","title":{"rendered":"Grafana Labs Security Breach \u2013 Hackers Access GitHub and Download Codebase"},"content":{"rendered":"<p>    Grafana Labs Security Breach \u2013 Hackers Access GitHub and Download Codebase<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n    <!-- no image --><br \/>\n \t<BR><br \/>\n<BR><\/BR><\/p>\n<div>\n<p>A threat actor infiltrated Grafana Labs\u2019 GitHub environment, stealing a privileged token to download the company\u2019s private codebase, and then attempted to extort the open-source observability giant with an unanswered ransom demand.<\/p>\n<p>Grafana Labs disclosed on May 16, 2026, that an unauthorized party obtained a token granting access to its GitHub environment, enabling the threat actor to download its codebase.<\/p>\n<h2 class=\"wp-block-heading\" id=\"h-grafana-labs-breach\"><strong>Grafana Labs Breach<\/strong><\/h2>\n<p>The company confirmed the intrusion after one of its thousands of deployed canary tokens was triggered, immediately alerting the global security team.<\/p>\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\">\n<div class=\"wp-block-embed__wrapper\">\n<div class=\"embed-twitter\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\"><img data-recalc-dims=\"1\" decoding=\"async\" src=\"https:\/\/i0.wp.com\/s.w.org\/images\/core\/emoji\/17.0.2\/72x72\/1f6a8.png?ssl=1\" alt=\"\ud83d\udea8\" class=\"wp-smiley\" style=\"height: 1em; max-height: 1em;\"> We recently discovered that an unauthorized party obtained a token with access to the Grafana Labs GitHub environment, enabling the threat actor to download our codebase. (1\/6)<\/p>\n<p>\u2014 Grafana (@grafana) <a href=\"https:\/\/twitter.com\/grafana\/status\/2055827123236171827?ref_src=twsrc%5Etfw\">May 17, 2026<\/a>\n<\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div>\n<\/div>\n<\/figure>\n<p>The root cause was traced to a recently enabled GitHub Action that contained a \u201cPwn Request\u201d vulnerability, a misconfiguration in a workflow triggered on <code>pull_request_target<\/code> events that granted external contributors access to production secrets during CI runs.<\/p>\n<p>The attacker\u2019s method was calculated and methodical. By forking a Grafana repository, injecting malicious code via a <code>curl<\/code> command, and dumping environment variables to a file encrypted with a private key, the threat actor successfully extracted privileged tokens.<\/p>\n<p>The attacker then deleted their fork to cover their tracks before using the compromised credentials to replicate the attack against four additional private repositories.<\/p>\n<p>After downloading Grafana\u2019s private codebase, the attacker escalated the intrusion into extortion, demanding payment in exchange for not releasing the stolen code. Grafana Labs refused.<\/p>\n<p><a href=\"https:\/\/www.fbi.gov\/how-we-can-help-you\/scams-and-safety\/common-frauds-and-scams\/ransomware\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">Citing the FBI\u2019s published guidance<\/a> that \u201cpaying a ransom doesn\u2019t guarantee you or your organization will get any data back\u201d and only \u201coffers an incentive for others to get involved in this type of illegal activity,\u201d the company determined that non-payment was the appropriate path forward.<\/p>\n<p>The company stated its investigation has determined that no customer data or personal information was accessed during the incident, and that there is no evidence of impact to customer systems or operations.<\/p>\n<figure class=\"wp-block-embed is-type-rich is-provider-twitter wp-block-embed-twitter\">\n<div class=\"wp-block-embed__wrapper\">\n<div class=\"embed-twitter\">\n<blockquote class=\"twitter-tweet\" data-width=\"550\" data-dnt=\"true\">\n<p lang=\"en\" dir=\"ltr\">Our investigation has determined that no customer data or personal\u00a0 information was accessed during this incident, and we have found no evidence of impact to customer systems or operations. (2\/6)<\/p>\n<p>\u2014 Grafana (@grafana) <a href=\"https:\/\/twitter.com\/grafana\/status\/2055827125308141708?ref_src=twsrc%5Etfw\">May 17, 2026<\/a>\n<\/p><\/blockquote>\n<p><script async src=\"https:\/\/platform.twitter.com\/widgets.js\" charset=\"utf-8\"><\/script>\n<\/div>\n<\/div>\n<\/figure>\n<p>Grafana\u2019s security team moved swiftly to contain the breach. The compromised credentials were immediately invalidated, the vulnerable GitHub Action was removed, and all workflows across public repositories were disabled.<\/p>\n<p>The incident has reignited community debate around <a href=\"https:\/\/cybersecuritynews.com\/teampcp-hackers-abuse-ci-cd-pipelines\/\" target=\"_blank\" rel=\"noreferrer noopener\">CI\/CD pipeline security<\/a> and software supply chain risks.<\/p>\n<p>Security researchers noted that the attack vector, a misconfigured pull_request_target workflow, is a widely underestimated attack surface across the open-source ecosystem.<\/p>\n<p>The breach drew mixed reactions online: many praised Grafana for rapid transparency, while others wryly noted the irony of an observability-focused company missing alerts on its own infrastructure<\/p>\n<p>Grafana Labs has confirmed to share additional findings from its post-incident review once investigations are complete, reinforcing its commitment to transparency with the developer and security communities.<\/p>\n<p class=\"has-text-align-center has-background\" style=\"background:linear-gradient(180deg,rgb(238,238,238) 91%,rgb(169,184,195) 100%)\"><strong>Follow us on\u00a0<a href=\"https:\/\/news.google.com\/publications\/CAAqMggKIixDQklTR3dnTWFoY0tGV041WW1WeWMyVmpkWEpwZEhsdVpYZHpMbU52YlNnQVAB?hl=en-IN&amp;gl=IN&amp;ceid=IN:en\" target=\"_blank\" rel=\"noreferrer noopener\">Google News<\/a>,\u00a0<a href=\"https:\/\/www.linkedin.com\/company\/cybersecurity-news\/\" target=\"_blank\" rel=\"noreferrer noopener\">LinkedIn<\/a>,\u00a0and\u00a0<a href=\"https:\/\/x.com\/cyber_press_org\" target=\"_blank\" rel=\"noreferrer noopener\">X<\/a>\u00a0to Get More Instant Updates.<\/strong><\/p>\n<p>The post <a href=\"https:\/\/cybersecuritynews.com\/grafana-labs-security-breach\/\">Grafana Labs Security Breach \u2013 Hackers Access GitHub and Download Codebase<\/a> appeared first on <a href=\"https:\/\/cybersecuritynews.com\/\">Cyber Security News<\/a>.<\/p>\n<\/div>\n<p> \t<BR><br \/>\n <BR><\/BR><br \/>\n    Guru Baran<br \/>\n \t<BR><br \/>\n<BR><\/BR><br \/>\n<a href=\"https:\/\/cybersecuritynews.com\/grafana-labs-security-breach\/\">Go to cyber-security-news<\/a><br \/>\n \t<BR><br \/>\n <BR><\/BR><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grafana Labs Security Breach \u2013 Hackers Access GitHub and Download Codebase A threat actor infiltrated Grafana Labs\u2019 GitHub environment, stealing a privileged token to download the company\u2019s private codebase, and then attempted to extort the open-source observability giant with an unanswered ransom demand. Grafana Labs disclosed on May 16, 2026, that an unauthorized party obtained [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[129,63,156],"tags":[130],"class_list":["post-12935","post","type-post","status-publish","format-standard","hentry","category-cyber-security","category-cyber-security-news","category-data-breach","tag-cyber-security-news"],"_links":{"self":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/12935"}],"collection":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/comments?post=12935"}],"version-history":[{"count":0,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/posts\/12935\/revisions"}],"wp:attachment":[{"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/media?parent=12935"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/categories?post=12935"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/serisec.com\/index.php\/wp-json\/wp\/v2\/tags?post=12935"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}