VulnSocial

CVE-2026-87743Patch

LOWCVSS 7.5 · HIGH

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Patch affected systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD description

A flaw was found in Quarkus HTTP security. An unauthenticated attacker can exploit a discrepancy in how paths are normalized between the security matcher and HTTP request dispatchers. This allows the attacker to craft a URL that the security matcher considers public, but which is then routed to a protected endpoint, leading to an authorization bypass and potential unauthorized access to sensitive information.

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0.5/ 10 priority

Sources & remediation

Other references
Weakness type (CWE)
CWE-551

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

AVAILABLE

Momentum

NONE

Threat summary

  • Patch or workaround signal is available
  • 1 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • 1 total mentions across 1 day

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-09-20: 1Patch / Workaround · 2026-09-20: 1Technical Details · 2026-09-20: 109-20
Signal classification1 categories
Patch
1100.0%
Full discourse1 post
  • DFIR Lab@DFIR_Lab
    Patch

    🚨 HIGH SEVERITY: CVE-2026-87743 (CVSS 7.5) Quarkus HTTP security flaw allows authorization bypass via path normalization discrepancy. Unauthenticated attackers can access protected endpoints. Patch immediately. #CVE #Vulnerability #PatchNow #ThreatIntel https://t.co/Le2nSh5CVr

    Post summary

    The tweet discloses a high-severity Quarkus authorization bypass vulnerability (CVE-2026-87743) with technical details and a CVSS 7.5 score, primarily urging users to patch immediately.

    0000032
    139 followersView on X

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