{"id":82624,"date":"2026-07-28T15:49:20","date_gmt":"2026-07-28T12:19:20","guid":{"rendered":"https:\/\/afaghhosting.net\/blog\/cve-2026-66913-zip-bomb-in-lookyloo-capture-upload-allows-denial-of-service\/"},"modified":"2026-07-28T15:49:20","modified_gmt":"2026-07-28T12:19:20","slug":"cve-2026-66913-zip-bomb-in-lookyloo-capture-upload-allows-denial-of-service","status":"publish","type":"post","link":"https:\/\/afaghhosting.net\/blog\/cve-2026-66913-zip-bomb-in-lookyloo-capture-upload-allows-denial-of-service\/","title":{"rendered":"CVE-2026-66913 &#8211; Zip Bomb in Lookyloo Capture Upload Allows Denial of Service"},"content":{"rendered":"<p>CVE ID :CVE-2026-66913<\/p>\n<p>  Published : July 28, 2026, 12:19 p.m. | 20\u00a0minutes ago<\/p>\n<p>  Description :Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files.<\/p>\n<p>An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because the application decompressed this content directly in memory without first limiting the output size, processing the malicious capture could exhaust available memory, terminate a web or worker process, or make the Lookyloo instance unavailable.<\/p>\n<p>The vulnerability affects both full Lookyloo capture archive imports and API submissions containing gzip-compressed HAR data. Repeated exploitation could cause a persistent denial-of-service condition until the affected processes or instance are restarted.<\/p>\n<p>The patch introduces:<\/p>\n<p>  *  A 1 GB cumulative uncompressed-size limit for imported capture archives.<br \/>\n  *  Size-limited gzip and zlib decompression for compressed HAR files.<br \/>\n  *  Explicit detection and handling of suspected zip bombs.<br \/>\n  *  An HTTP 400 response when an oversized compressed HAR file is submitted through the API.<\/p>\n<p>  Severity: 6.9 | MEDIUM<\/p>\n<p>  Visit the link for more details, such as CVSS details, affected products, timeline, and more&#8230;\u00a0<\/p>\n","protected":false},"excerpt":{"rendered":"<p>CVE ID :CVE-2026-66913 Published : July 28, 2026, 12:19 p.m. | 20\u00a0minutes ago Description :Lookyloo did not enforce limits on the decompressed size of uploaded capture archives and compressed HAR files. An attacker could submit a specially crafted ZIP, gzip, or zlib-compressed capture containing data that expands to a very large size during processing. Because &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-82624","post","type-post","status-publish","format-standard","hentry","category-vulnerability"],"_links":{"self":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82624","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/comments?post=82624"}],"version-history":[{"count":0,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/posts\/82624\/revisions"}],"wp:attachment":[{"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/media?parent=82624"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/categories?post=82624"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/afaghhosting.net\/blog\/wp-json\/wp\/v2\/tags?post=82624"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}