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JPCERT/CC

Japan's nonprofit Computer Emergency Response Team coordination center, handling incident response, vulnerability coordination and security advisories.

Known aliases

  • JPCERT
  • JPCERT Coordination Center
  • 一般社団法人JPCERTコーディネーションセンター

Current stories

buildOne report1 publisher

GROWI 7.5.5 closes an anonymous file read on wikis that store uploads locally

GROWI, Inc. shipped GROWI 7.5.5 to close CVE-2026-100727, a flaw letting visitors with no account read files from non-public pages on local-upload wikis. Because the read needs no login, any reachable Local-mode instance on an older release is a patch-now item.

Publishers:dev.to

Reality

Evidence55
Adoption30
Hype gap+5
Incentives
Not scored
Confidence50
securityOne report1 publisher

JPCERT/CC links Japan's data-leak run to app APIs and BI tools owners thought were internal

JPCERT/CC says attackers abused mobile-app APIs and exploited a known Metabase flaw in a leak run Macnica puts at 119 Japanese incidents this year. Some leaks came from BI tools and staff systems their owners never expected outsiders to reach, so the alert asks for access control on every endpoint, public or not.

Reality

Evidence60
Adoption
Not scored
Hype gap+10
Incentives
Not scored
Confidence55
securityConfirmed2 publishers

Suspected ransomware takes down about 500 servers at Osaka Metropolitan University

Osaka Metropolitan University cancelled classes after a suspected ransomware attack stopped about 500 servers, Japanese media reported. Records on at least 130,000 current and former students, faculty and others may be exposed, though the university has not confirmed any theft.

Reality

Evidence60
Adoption
Not scored
Hype gap+15
Incentives
Not scored
Confidence62
securityOne report1 publisher

F5 reclassifies CVE-2025-53521 as unauthenticated RCE already used in attacks

JPCERT/CC's 2026-03-30 alert asks BIG-IP APM operators to apply the fix and then check whether the box was already compromised, because F5 now rates its October denial-of-service bug as unauthenticated code execution under attack.

Publishers:jpcert.or.jp

Reality

Evidence68
Adoption42
Hype gap−12
Incentives32
Confidence66
buildOne report1 publisher

One unauthenticated SAML request reaches root on NetScaler before signature verification runs

The overflow in CVE-2026-8452 sits in PrefixList canonicalization, which NetScaler performs before it validates the SAML signature, so an attacker needs no trust with your IdP and only a reachable virtual server with SAML turned on.

Publishers:dev.to

Reality

Evidence56
Adoption63
Hype gap−8
Incentives44
Confidence55