CVE-2026-8739Disclosure

LOWCVSS 5.5 · MEDIUM

Signal is active with 1 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

A vulnerability was detected in Sanluan PublicCMS 5.202506.d. The affected element is the function getSignKey of the file publiccms-core/src/main/java/com/publiccms/logic/component/config/SafeConfigComponent.java. The manipulation of the argument privatefile_key results in use of hard-coded cryptographic key . The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

0.0/ 10 priority

Sources & remediation

Weakness type (CWE)
CWE-320CWE-321

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Threat summary

  • 1 mentions across 1 observed day

What's happening

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

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-05-17: 1Technical Details · 2026-05-17: 105-17
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • Vulmon Vulnerability Feed@VulmonFeeds
    Disclosure

    CVE-2026-8739 Hard-Coded Cryptographic Key Vulnerability in Sanluan PublicCMS 5.202506.d https://vulmon.com/vulnerabilitydetails?qid=CVE-2026-8739

    Post summary

    CVE-2026-8739 is a newly disclosed hard‑coded cryptographic key flaw in Sanluan PublicCMS 5.202506.d, with no PoC or exploit details or patch information provided.

    0001078
    4.0K followersView on X

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