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Johannes Ullrich

Host of the SANS ISC Stormcast episode that reported the Keycloak, N-able, and LLM guardrail items.

Known aliases

  • Dr. Johannes Ullrich
  • Johannes Ullrich
  • Ullrich

Current stories

securityOne report1 publisher

GitLab patches CVE-2026-97229, an unauthenticated code execution flaw in its CI/CD regex compiler

GitLab patched CVE-2026-97229, an integer overflow in its CI/CD regex compiler that lets unauthenticated users run code on self-managed servers. Separately, Let's Encrypt's 64-day production certificates start February 10, 2027, so renewal automation needs a test run first.

Publishers:isc.sans.edu

Reality

Evidence55
Adoption
Insufficient
Hype gap+5
Incentives
Insufficient
Confidence65
securityConfirmed6 publishers

Attackers hit Atlassian's CVE-2026-21589 two hours after watchTowr published the technique

Previdian recorded exploitation attempts against Atlassian's CVE-2026-21589 within two hours of watchTowr publishing the arbitrary file access technique. The CVSS 9.3 flaw lets an unauthenticated attacker read specific webroot files across eight Data Center products.

Perspective Coverage

6 publishers
Builder
Builder 27%
Operator
Operator 67%
Investor
Investor 6%

Reality

Evidence78
Adoption30
Hype gap+15
Incentives45
Confidence70
securityOne report1 publisher

Microsoft rates its only two exploited July bugs important and moderate

Microsoft's July update fixes 622 vulnerabilities, 62 of them rated critical. The two it says attackers are already using, in AD FS and SharePoint Server, sit below that line, so exploited status has to order the work.

Publishers:sans.org

Reality

Evidence68
Adoption45
Hype gap+12
Incentives35
Confidence66