{"id":58876,"date":"2026-06-01T12:50:55","date_gmt":"2026-06-01T12:50:55","guid":{"rendered":"https:\/\/zero.redgem.net\/?p=58876"},"modified":"2026-06-01T12:50:55","modified_gmt":"2026-06-01T12:50:55","slug":"janet-lang-janet-marshc-unmarshalonefiber-integer-overflow","status":"publish","type":"post","link":"https:\/\/zero.redgem.net\/?p=58876","title":{"rendered":"janet-lang janet marsh.c unmarshal_one_fiber integer overflow_CVE-2026-10268"},"content":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A weakness has been identified in janet-lang janet up to 1.41.0. This vulnerability affects the function unmarshal_one_fiber of the file src\/core\/marsh.c. Executing a manipulation can lead to integer overflow. It is possible to launch the attack on the local host. The exploit has been made available to the public and could be used for attacks. This patch is called d9b1d711ea1fde52ac73a82088b512a3e17bad0d. A patch should be applied to remediate this issue.&#8221;,&#8221;published&#8221;:&#8221;2026-06-01T15:00:12.912Z&#8221;,&#8221;modified&#8221;:&#8221;2026-06-01T15:00:12.912Z&#8221;,&#8221;type&#8221;:&#8221;cve&#8221;,&#8221;title&#8221;:&#8221;janet-lang janet marsh.c unmarshal_one_fiber integer overflow&#8221;,&#8221;source&#8221;:&#8221;VulDB&#8221;,&#8221;references&#8221;:&#8221;https:\/\/vuldb.com\/vuln\/367547\\nhttps:\/\/vuldb.com\/vuln\/367547\/cti\\nhttps:\/\/vuldb.com\/cve\/CVE-2026-10268\\nhttps:\/\/vuldb.com\/submit\/825075\\nhttps:\/\/github.com\/janet-lang\/janet\/issues\/1744\\nhttps:\/\/github.com\/biniamf\/pocs\/tree\/main\/janet-marsh-unmarshal-intovf\\nhttps:\/\/github.com\/janet-lang\/janet\/commit\/d9b1d711ea1fde52ac73a82088b512a3e17bad0d\\nhttps:\/\/github.com\/janet-lang\/janet\/&#8221;,&#8221;id&#8221;:&#8221;CVE-2026-10268&#8243;,&#8221;bulletinFamily&#8221;:&#8221;&#8221;,&#8221;cwe&#8221;:[&#8220;CWE-190&#8243;,&#8221;CWE-189&#8243;],&#8221;cvelist&#8221;:null,&#8221;sourceData&#8221;:&#8221;janet-lang janet 1.0\\njanet-lang janet 1.1\\njanet-lang janet 1.2\\njanet-lang janet 1.3\\njanet-lang janet 1.4\\njanet-lang janet 1.5\\njanet-lang janet 1.6\\njanet-lang janet 1.7\\njanet-lang janet 1.8\\njanet-lang janet 1.9\\njanet-lang janet 1.10\\njanet-lang janet 1.11\\njanet-lang janet 1.12\\njanet-lang janet 1.13\\njanet-lang janet 1.14\\njanet-lang janet 1.15\\njanet-lang janet 1.16\\njanet-lang janet 1.17\\njanet-lang janet 1.18\\njanet-lang janet 1.19\\njanet-lang janet 1.20\\njanet-lang janet 1.21\\njanet-lang janet 1.22\\njanet-lang janet 1.23\\njanet-lang janet 1.24\\njanet-lang janet 1.25\\njanet-lang janet 1.26\\njanet-lang janet 1.27\\njanet-lang janet 1.28\\njanet-lang janet 1.29\\njanet-lang janet 1.30\\njanet-lang janet 1.31\\njanet-lang janet 1.32\\njanet-lang janet 1.33\\njanet-lang janet 1.34\\njanet-lang janet 1.35\\njanet-lang janet 1.36\\njanet-lang janet 1.37\\njanet-lang janet 1.38\\njanet-lang janet 1.39\\njanet-lang janet 1.40\\njanet-lang janet 1.41.0&#8243;,&#8221;sourceHref&#8221;:&#8221;&#8221;,&#8221;cvss&#8221;:{&#8220;score&#8221;:4.8,&#8221;severity&#8221;:&#8221;MEDIUM&#8221;,&#8221;vector&#8221;:&#8221;CVSS:4.0\/AV:L\/AC:L\/AT:N\/PR:L\/UI:N\/VC:N\/VI:N\/VA:L\/SC:N\/SI:N\/SA:N\/E:P&#8221;,&#8221;version&#8221;:&#8221;4.0&#8243;},&#8221;cvss2&#8243;:{},&#8221;cvss3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;,&#8221;cvssV3&#8243;:{&#8220;version&#8221;:&#8221;&#8221;,&#8221;vectorString&#8221;:&#8221;&#8221;,&#8221;baseScore&#8221;:0,&#8221;baseSeverity&#8221;:&#8221;&#8221;,&#8221;attackVector&#8221;:&#8221;&#8221;,&#8221;attackComplexity&#8221;:&#8221;&#8221;,&#8221;privilegesRequired&#8221;:&#8221;&#8221;,&#8221;userInteraction&#8221;:&#8221;&#8221;,&#8221;scope&#8221;:&#8221;&#8221;,&#8221;confidentialityImpact&#8221;:&#8221;&#8221;,&#8221;integrityImpact&#8221;:&#8221;&#8221;,&#8221;availabilityImpact&#8221;:&#8221;&#8221;}},&#8221;href&#8221;:&#8221;&#8221;,&#8221;category_name&#8221;:&#8221;CVE&#8221;,&#8221;post_link&#8221;:&#8221;&#8221;,&#8221;product&#8221;:&#8221;janet&#8221;,&#8221;version&#8221;:&#8221;1.0&#8243;,&#8221;vendor&#8221;:&#8221;janet-lang&#8221;,&#8221;ai_description&#8221;:&#8221;&#8221;,&#8221;ai_severity&#8221;:&#8221;&#8221;,&#8221;ai_vendor&#8221;:&#8221;&#8221;,&#8221;ai_product&#8221;:&#8221;&#8221;,&#8221;ai_version&#8221;:&#8221;&#8221;,&#8221;ai_score&#8221;:0}<\/p>\n","protected":false},"excerpt":{"rendered":"<p>{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A weakness has been identified in janet-lang janet up to 1.41.0. This vulnerability affects the function unmarshal_one_fiber of the file src\/core\/marsh.c. Executing a manipulation can&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[6,8,75,12,21,13,7,11,5],"class_list":["post-58876","post","type-post","status-publish","format-standard","hentry","category-category_cve","tag-cve","tag-cvss","tag-cvss-48","tag-exploit","tag-medium","tag-news","tag-security","tag-tapic","tag-vulnerability"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>janet-lang janet marsh.c unmarshal_one_fiber integer overflow_CVE-2026-10268 - zero redgem<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zero.redgem.net\/?p=58876\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"janet-lang janet marsh.c unmarshal_one_fiber integer overflow_CVE-2026-10268 - zero redgem\" \/>\n<meta property=\"og:description\" content=\"{&#8220;lastseen&#8221;:&#8221;&#8221;,&#8221;description&#8221;:&#8221;A weakness has been identified in janet-lang janet up to 1.41.0. 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