CVE-2026-54734Disclosure

LOWCVSS 10.0 · CRITICAL

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Prebid Server Java is the Java version of Prebid Server. Prior to 3.43.0, certain bidder adapters interpolate user-supplied parameters into outbound request URLs without using HttpUtil to validate the resulting domain or path segment. A malicious actor who can supply bid-request parameters can cause the server to send HTTP requests to unintended destinations, potentially reaching internal network services, metadata endpoints, or other sensitive server endpoints with the server's network access. This issue is fixed in version 3.43.0.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-918

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 2 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • General: 1 classified signal
  • 2 total mentions across 1 day

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-09-18: 2Technical Details · 2026-09-18: 109-18
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets1 URL
By indicator
Full discourse2 posts
  • ExploitGrid@exploitgrid
    Disclosure

    [CVE] CVE-2026-54734 [HIGH PRIORITY] #Prebid Server Java: Vulnerability to request forgery allows for possible host... 🔗 https://exploitgrid.net/cve/CVE-2026-54734

    Post summary

    The tweet announces CVE-2026-54734, a high-priority request forgery vulnerability in Prebid Server Java, providing a link to further details but no exploit or patch information.

    1001048
    47 followersView on X
  • ExploitGrid@exploitgrid
    General

    🛡️ #ExploitGrid Daily #Threat Digest Top Vulnerabilities (CVEs) of the day CVE-2026-54734 CVE-2026-62104 CVE-2026-62874 CVE-2026-69399 CVE-2026-69843 ..🧵👇

    Post summary

    The digest only enumerates CVE identifiers without providing exploitation status, PoCs, patches, or technical details, so no specific indicator can be confirmed.

    1000062
    47 followersView on X

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