https://vulnerability.circl.lu Contains only the most 10 recent sightings. http://www.rssboard.org/rss-specification python-feedgen en Thu, 24 Sep 2026 03:34:19 +0000 https://vulnerability.circl.lu/sighting/a8ed1366-7527-4cb6-a8f3-21476142c1a7/export {"uuid": "a8ed1366-7527-4cb6-a8f3-21476142c1a7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77987", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mw5b4eqyyg2f", "content": "CVE-2026-77987 - enterprise server\nThe notebook viewer in GitHub Enterprise Server versions 3.17 to 3.22 lets an attacker send crafted URLs that reach internal services on the same machine. By\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#enterpriseserver #github #CVE #infosec", "creation_timestamp": "2026-09-22T22:20:04.580782Z"} {"uuid": "a8ed1366-7527-4cb6-a8f3-21476142c1a7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77987", "type": "seen", "source": "https://bsky.app/profile/stackflag.bsky.social/post/3mw5b4eqyyg2f", "content": "CVE-2026-77987 - enterprise server\nThe notebook viewer in GitHub Enterprise Server versions 3.17 to 3.22 lets an attacker send crafted URLs that reach internal services on the same machine. By\u2026\n\nToo many irrelevant or confusing CVEs? Use stackflag.com\n\n#enterpriseserver #github #CVE #infosec", "creation_timestamp": "2026-09-22T22:20:04.580782Z"} https://vulnerability.circl.lu/sighting/a8ed1366-7527-4cb6-a8f3-21476142c1a7/export Tue, 22 Sep 2026 22:20:04 +0000 https://vulnerability.circl.lu/sighting/33bc7ca2-513d-48be-b6b8-217d373da518/export {"uuid": "33bc7ca2-513d-48be-b6b8-217d373da518", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77987", "type": "seen", "source": "https://bsky.app/profile/stemshop.bsky.social/post/3mw5alyvquk2j", "content": "\ud83d\udea8 CVE-2026-77987 \u2014 CVSS 9.3 CRITICAL\n\nA server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterpri...\n\n\ud83d\udd0e https://stemshop.top/cve/CVE-2026-77987\n\n#CVE #CyberSecurity #InfoSec", "creation_timestamp": "2026-09-22T22:10:55.297945Z"} {"uuid": "33bc7ca2-513d-48be-b6b8-217d373da518", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-77987", "type": "seen", "source": "https://bsky.app/profile/stemshop.bsky.social/post/3mw5alyvquk2j", "content": "\ud83d\udea8 CVE-2026-77987 \u2014 CVSS 9.3 CRITICAL\n\nA server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterpri...\n\n\ud83d\udd0e https://stemshop.top/cve/CVE-2026-77987\n\n#CVE #CyberSecurity #InfoSec", "creation_timestamp": "2026-09-22T22:10:55.297945Z"} https://vulnerability.circl.lu/sighting/33bc7ca2-513d-48be-b6b8-217d373da518/export Tue, 22 Sep 2026 22:10:55 +0000 https://vulnerability.circl.lu/sighting/e0e88468-0ba3-44f5-9e5f-07e80b49e4e7/export {"uuid": "e0e88468-0ba3-44f5-9e5f-07e80b49e4e7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-77987", "type": "seen", "source": "https://infosec.exchange/users/cR0w/statuses/117316846141264874", "content": "Go hack more GitHub shit.\nhttps://nvd.nist.gov/vuln/detail/cve-2026-77987\n\nA server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server. The notebook viewer validated the scheme and host of a user-supplied URL but did not validate the port, allowing requests to be directed to internal services listening on other ports of the same appliance. Response bodies were not returned to the requester, but response timing acted as an oracle that allowed instance secrets to be extracted character by character. An extracted secret could then be used in a separate interaction with an internal service to obtain remote code execution on the appliance. Exploitation required network access to the instance and was unauthenticated when private mode was disabled, or required any authenticated user when private mode was enabled. This vulnerability affected GitHub Enterprise Server versions 3.17 through 3.22 and was fixed in versions 3.22.1, 3.21.6, 3.20.8, 3.19.12, 3.18.15, and 3.17.21. This vulnerability was reported through the GitHub Bug Bounty program.\nsev:CRIT 9.3 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "creation_timestamp": "2026-09-22T21:36:49.513072Z"} {"uuid": "e0e88468-0ba3-44f5-9e5f-07e80b49e4e7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-77987", "type": "seen", "source": "https://infosec.exchange/users/cR0w/statuses/117316846141264874", "content": "Go hack more GitHub shit.\nhttps://nvd.nist.gov/vuln/detail/cve-2026-77987\n\nA server-side request forgery (SSRF) vulnerability was identified in the notebook viewer of GitHub Enterprise Server. The notebook viewer validated the scheme and host of a user-supplied URL but did not validate the port, allowing requests to be directed to internal services listening on other ports of the same appliance. Response bodies were not returned to the requester, but response timing acted as an oracle that allowed instance secrets to be extracted character by character. An extracted secret could then be used in a separate interaction with an internal service to obtain remote code execution on the appliance. Exploitation required network access to the instance and was unauthenticated when private mode was disabled, or required any authenticated user when private mode was enabled. This vulnerability affected GitHub Enterprise Server versions 3.17 through 3.22 and was fixed in versions 3.22.1, 3.21.6, 3.20.8, 3.19.12, 3.18.15, and 3.17.21. This vulnerability was reported through the GitHub Bug Bounty program.\nsev:CRIT 9.3 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N", "creation_timestamp": "2026-09-22T21:36:49.513072Z"} https://vulnerability.circl.lu/sighting/e0e88468-0ba3-44f5-9e5f-07e80b49e4e7/export Tue, 22 Sep 2026 21:36:49 +0000