{"vulnerability": "cve-2026-18556", "sightings": [{"uuid": "e9688f33-0fb0-4026-a2ea-5a572fb331c2", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/opsmatters.com/post/3msa6kf4tje2n", "content": "The latest update for #ArcticWolf includes \"CVE-2026-18556 / CVE-2026-18577: N-able N-central Authentication Bypass Vulnerabilities Require Immediate #Patching\" and \"You Can't Buy Your Way Out of Downtime\".\n \n#cybersecurity #infosec #networks https://opsmtrs.com/2ZFbaTl", "creation_timestamp": "2026-08-04T04:31:26.155900Z"}, {"uuid": "90981fc0-5ce8-45ca-a94e-aac92a4d1f2d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/malwareobserver.bsky.social/post/3msba4q36uf2l", "content": "\ud83d\udc1b VULNERABILITIES CVE Notify: \ud83d\udea8 [CVE-2026-18556](https://uptime.n-able.com/)\nAuthentication bypass using an alternate path or cha...\nhttps://uptime.n-able.com/ #CVE #ZeroDay #PatchManagement", "creation_timestamp": "2026-08-04T14:32:15.742277Z"}, {"uuid": "413ef613-b96c-47c3-8954-fd7d3e529854", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-18556", "type": "seen", "source": "https://infosec.exchange/users/AAKL/statuses/117037728063764089", "content": "CISA added this vulnerability to the catalogue yesterday, if you missed it: \nCVE-2026-18577: N-able N-central Authentication Bypass Using an Alternate Path or Channel Vulnerability https://www.cve.org/CVERecord?id=CVE-2026-18577\nArctic Wolf: CVE-2026-18556 / CVE-2026-18577: N-able N-central Authentication Bypass Vulnerabilities Require Immediate Patching https://arcticwolf.com/resources/blog/cve-2026-18556-cve-2026-18577/ #infosec #vulnerability #CISA", "creation_timestamp": "2026-08-04T14:33:29.984240Z"}, {"uuid": "9a199fd4-2bc6-4a8c-9dea-34436ba860b7", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/diymgbrfsx65k", "content": "CVE-2026-18577 - Incomplete patch leads to administrative account takeover\nCVE ID : CVE-2026-18577\n \n Published : Aug. 2, 2026, 11:16 p.m. | 39\u00a0minutes ago\n \n Description : An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-centra...", "creation_timestamp": "2026-08-03T00:01:54.735160Z"}, {"uuid": "b454af89-4335-4c7d-83a8-747ab98ba421", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0275", "content": "N-able heeft kwetsbaarheden verholpen in N-able N-central tot en met versie 2026.3.1. De kwetsbaarheden betreffen bypass van authenticatie in N-able N-central. In versies tot en met 2026.1 kan een aanvaller de authenticatiecontroles omzeilen door een alternatieve route binnen de applicatie te benutten.\n\nIn versies tot en met 2026.3.1 is een onvolledige patch voor de kwetsbaarheid met kenmerk CVE-2026-18556 ge\u00efntroduceerd die authenticatieomzeiling en overname van accounts mogelijk maakt. Dit issue heeft kenmerk CVE-2026-18577 toegewezen gekregen. Hierdoor kan een aanvaller ongeautoriseerd toegang krijgen tot gebruikersaccounts en het systeem controleren. Alle implementaties die de genoemde versies gebruiken, zijn kwetsbaar.\n\nN-able meldt dat misbruik van de kwetsbaarheid is ontdekt en hierop gebruikers heeft ge\u00efnformeerd.", "creation_timestamp": "2026-08-03T10:00:37.732521Z"}, {"uuid": "855b33a5-af78-4ef7-8aff-14f9fc5edf5d", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "exploited", "source": "Telegram/gkPs5Wjt5WHvC26RJXYmF2UWxeus-aPenNIWkoSGDD5BJA", "content": "", "creation_timestamp": "2026-08-04T17:00:04.652173Z"}, {"uuid": "81b9b43d-2d63-4c1e-9767-93be28ef70cb", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cvesentinel.bsky.social/post/3msbjemnwuk26", "content": "\ud83d\uded1 CVE-2026-18556\nN-able N-central\nCVSS 8.2 / EPSS 0% / KEV \u2705\nTL;DR: Authentication bypass using an alternate path or channel vulnerability in N-able N-central a\u2026\nhttps://cvesentinel.com/report/CVE-2026-18556?utm_source=bluesky&utm_medium=social&utm_campaign=cvesentinel\n#infosec #CVE #vulnerability", "creation_timestamp": "2026-08-04T17:17:44.537769Z"}, {"uuid": "3d48f8cf-fe00-4b82-88a1-f87ecf5e4e0b", "vulnerability_lookup_origin": "405284c2-e461-4670-8979-7fd2c9755a60", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/8f341abd-5de9-4051-b7ad-7fce9c6482e0", "content": "", "creation_timestamp": "2026-08-04T18:00:01.638672Z"}, {"uuid": "178be34b-a9d2-49fe-bbda-4b9c6a80598a", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cecallihelper.bsky.social/post/3msbmaayzks2f", "content": "CISA \"added high-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog following reports of active exploitation in the wild\" thehackernews.com/2026/08/cisa... \"CVE-2026-18577 (CVSS score: 8.2) .. incomplete patching for CVE-2026-18556\" #cybersec tech", "creation_timestamp": "2026-08-04T18:09:04.651848Z"}, {"uuid": "66d805fb-1570-41d5-8001-4ab7ee594709", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/newssecia.bsky.social/post/3msaoprsbfc2t", "content": "\ud83e\udd16 CVE-2026-18577 (CVSS 8.2): authentication bypass in N-able N-central added to CISA KEV after active exploitation. Incomplete patch of CVE-2026-18556, gives admin access on RMM servers.\nhttps://thehackernews.com/2026/08/cisa-adds-exploited-n-able-n-central.html", "creation_timestamp": "2026-08-04T09:20:47.377618Z"}, {"uuid": "bb29bd47-182f-427e-8cae-5008916474b0", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://thehackernews.com/2026/08/cisa-adds-exploited-n-able-n-central.html", "content": "The U.S. Cybersecurity and Infrastructure Security Agency (CISA) on Monday added a high-severity security flaw impacting N-able N-central to its Known Exploited Vulnerabilities (KEV) catalog following reports of active exploitation in the wild.\n\nThe vulnerability, tracked as CVE-2026-18577 (CVSS score: 8.2), is a case of incomplete patching for CVE-2026-18556 (CVSS score: 8.2) that allows", "creation_timestamp": "2026-08-04T10:00:43.530077Z"}, {"uuid": "3d2b7a63-9792-48a0-8f89-5c90ddbfa62e", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://cyber.gc.ca/en/alerts-advisories/n-able-security-advisory-av26-769", "content": "", "creation_timestamp": "2026-08-04T20:15:06.798980Z"}, {"uuid": "2b36b407-c7b8-4f38-9327-d329bc606dc9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cve.skyfleet.blue/post/6yk3ai2b622lz", "content": "CVE-2026-18556 - Unauthenticated administrative account takeover\nCVE ID : CVE-2026-18556\n \n Published : Aug. 1, 2026, 8:16 p.m. | 1\u00a0hour, 25\u00a0minutes ago\n \n Description : Authentication bypass using an alternate path or channel vulnerability in N-able N-central allows Authentic...", "creation_timestamp": "2026-08-01T21:44:32.626784Z"}, {"uuid": "aac11c76-b046-4fe4-b7a1-57fd7cb98034", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-18556", "type": "seen", "source": "https://mastodon.social/ap/users/115426718704364579/statuses/117032526424746133", "content": "\ud83d\udcf0 N-able N-central Flaw (CVE-2026-18556) Actively Exploited in Attacks\n\ud83d\udea8 ACTIVE EXPLOITATION: A critical auth bypass flaw (CVE-2026-18556, CVSS 9.8) in N-able N-central RMM is being used to compromise MSPs. Attackers install CloudFlare tunnels for persistence. Patch to version 2026.3 NOW. #CVE #RMM #MSP\n\ud83d\udd17 https://cyber.netsecops.io/articles/n-able-n-central-vulnerability-cve-2026-18556-actively-exploited/?utm_source=mastodon&utm_medium=social&utm_campaign=daily", "creation_timestamp": "2026-08-03T16:30:35.744193Z"}, {"uuid": "ca7edbf9-8b06-46ae-86b9-8e3a62b56067", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/netsecio.bsky.social/post/3ms6wcn5lxb25", "content": "\ud83d\udea8 ACTIVE EXPLOITATION: A critical auth bypass flaw (CVE-2026-18556, CVSS 9.8) in N-able N-central RMM is being used to compromise MSPs. Attackers install CloudFlare tunnels for persistence. Patch to version 2026.3 NOW. #CVE #RMM #MSP\n\n\ud83c\udf10 cyber[.]netsecops[.]io", "creation_timestamp": "2026-08-03T16:31:16.479862Z"}, {"uuid": "63aae330-db8c-4b7f-a21e-c991e2ff4a70", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://infosec.exchange/users/vuldb/statuses/117023665141420912", "content": "It is possible to see elevated activities targeting N-able N-central (CVE-2026-18556) https://vuldb.com/vuln/385312/cti", "creation_timestamp": "2026-08-02T03:27:01.300721Z"}, {"uuid": "0c5d35e5-50b8-4e47-b883-bb5b5d39aad8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/kriptabiz.bsky.social/post/3ms3eljevnq25", "content": "CVE-2026-18556: \u041a\u0430\u043a \u0445\u0430\u043a\u0435\u0440\u044b \u043f\u043e\u043b\u0443\u0447\u0430\u044e\u0442 \u043f\u043e\u043b\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0441\u0438\u0441\u0442\u0435\u043c\u0430\u043c \u0447\u0435\u0440\u0435\u0437 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0432 N-able N-central\n\n\n\nhttps://kripta.biz/posts/267B17CF-7DD1-400D-8557-79FB73635153", "creation_timestamp": "2026-08-02T06:36:08.693105Z"}, {"uuid": "93ef30c9-f77e-4bd3-992b-67120e5ab77f", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cvesentinel.bsky.social/post/3ms77q5isht2b", "content": "\ud83d\uded1 CVE-2026-18577\nN-able N-central\nCVSS 8.2 / EPSS 1% / KEV: No\nTL;DR: An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeov\u2026\nhttps://cvesentinel.com/report/CVE-2026-18577?utm_source=bluesky&utm_medium=social&utm_campaign=cvesentinel\n#infosec #CVE #vulnerability", "creation_timestamp": "2026-08-03T19:19:53.498929Z"}, {"uuid": "7ff69d80-722f-487d-be2d-4d7bf7fe3a5c", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "86ecb4e1-bb32-44d5-9f39-8a4673af8385", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://www.kyberturvallisuuskeskus.fi/fi/haavoittuvuudet/haavoittuvuus-2026-21", "content": "", "creation_timestamp": "2026-08-02T12:45:04.607169Z"}, {"uuid": "ca1e8cd8-f858-4453-9a95-239fbca8c4bd", "vulnerability_lookup_origin": "caeb2787-0d58-4236-9039-7c86c3e566f3", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "exploited", "source": "https://vulnerability.circl.lu/known-exploited-vulnerabilities-catalog/4a07f7e0-6a49-4d0b-89bb-656bffcdd75f", "content": "", "creation_timestamp": "2026-08-02T14:00:20.128578Z"}, {"uuid": "bb753834-6576-438b-9ccf-dfa49123dba6", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/netsecio.bsky.social/post/3ms4bd6ktt62u", "content": "\ud83d\udea8 ACTIVE EXPLOITATION: A critical auth bypass flaw (CVE-2026-18556, CVSS 9.8) in N-able N-central RMM is being used to compromise MSPs. Attackers install CloudFlare tunnels for persistence. Patch to version 2026.3 NOW. #CVE #RMM #MSP\n\n\ud83c\udf10 cyber[.]netsecops[.]io", "creation_timestamp": "2026-08-02T15:10:27.144608Z"}, {"uuid": "4d168b1d-ca3f-4259-8adb-ffe2bdbd92c8", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "cve-2026-18556", "type": "seen", "source": "https://mastodon.social/ap/users/115426718704364579/statuses/117026546829497345", "content": "\ud83d\udcf0 N-able N-central Flaw (CVE-2026-18556) Actively Exploited in Attacks\n\ud83d\udea8 ACTIVE EXPLOITATION: A critical auth bypass flaw (CVE-2026-18556, CVSS 9.8) in N-able N-central RMM is being used to compromise MSPs. Attackers install CloudFlare tunnels for persistence. Patch to version 2026.3 NOW. #CVE #RMM #MSP\n\ud83d\udd17 https://cyber.netsecops.io/articles/n-able-n-central-vulnerability-cve-2026-18556-actively-exploited/?utm_source=mastodon&utm_medium=social&utm_campaign=daily", "creation_timestamp": "2026-08-02T15:12:04.930449Z"}, {"uuid": "6e2585b8-6cc9-43a3-bb36-df22835df5b9", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://advisories.ncsc.nl/advisory?id=NCSC-2026-0275", "content": "N-able heeft kwetsbaarheden verholpen in N-able N-central tot en met versie 2026.3.1. De kwetsbaarheden betreffen bypass van authenticatie in N-able N-central. In versies tot en met 2026.1 kan een aanvaller de authenticatiecontroles omzeilen door een alternatieve route binnen de applicatie te benutten.\n\nIn versies tot en met 2026.3.1 is een onvolledige patch voor de kwetsbaarheid met kenmerk CVE-2026-18556 ge\u00efntroduceerd die authenticatieomzeiling en overname van accounts mogelijk maakt. Dit issue heeft kenmerk CVE-2026-18577 toegewezen gekregen. Hierdoor kan een aanvaller ongeautoriseerd toegang krijgen tot gebruikersaccounts en het systeem controleren. Alle implementaties die de genoemde versies gebruiken, zijn kwetsbaar.\n\nN-able meldt dat misbruik van de kwetsbaarheid is ontdekt en hierop gebruikers heeft ge\u00efnformeerd.", "creation_timestamp": "2026-08-04T01:00:33.751802Z"}, {"uuid": "36fb8eb7-e3c6-4cea-83cf-80f45bc00a29", "vulnerability_lookup_origin": "1a89b78e-f703-45f3-bb86-59eb712668bd", "author": "9f56dd64-161d-43a6-b9c3-555944290a09", "vulnerability": "CVE-2026-18556", "type": "seen", "source": "https://bsky.app/profile/cvemon.bsky.social/post/3msb47v56zl27", "content": "CVE-2026-18577 \u00b7 trending #8\n\nCurrently trending CVE - Hype Score: 3 - An incomplete patch for CVE-2026-18556 allows for authentication bypass and account takeover in N-central Versions through 2026.3.1\n\nhttps://cvemon.intruder.io/cves/CVE-2026-18577", "creation_timestamp": "2026-08-04T13:22:30.356116Z"}]}