9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can use a vision-capable model and an attacker-controlled DNS name that first resolves to a public IP and then rebinds to an internal address, allowing server-side requests to internal-only HTTP services. This issue is fixed in version 0.5.2.
CVE-2026-56676
HIGHPre-NVD 7.47.4—Trending — 3 sources updated this week
EchelonGraph scoreMEDIUM confidence
This high-severity CVE scores 7.4 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.2%, top 95% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, secondary
7.4
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.4Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 7.4
- EG Score
- 7.4(medium)
- EPSS
- 5.0%
- KEV
- Not listed
Published
July 10, 2026
Last Modified
July 10, 2026
Advisory Details (3)
Auto-updated Jul 10, 2026🔬 Proof of concept available. Patch available. Sources: github_commit, github_release, github.
github Patch Available🟡 PoC Available
Image prefetch DNS rebinding allows SSRF to internal services · Advisory · decolua/9router · GitHub
https://github.com/decolua/9router/security/advisories/GHSA-cmhj-wh2f-9cgxgithub_release Patch Available
feat: Combo Fusion + Capacity auto-switch, Kiro API-key, Claude auto-ping & 429 throttle version 0.5.2
Patch available: decolua/9router v0.5.2
https://github.com/decolua/9router/releases/tag/v0.5.2github_commit Patch Available
commit c7d07448c58b (decolua/9router)
Patch available: decolua/9router v0.5.2 (contains commit c7d07448c58b)
https://github.com/decolua/9router/commit/c7d07448c58bec1200741de0b73305b860416b82Weakness Classification(2)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 6× in last 7d / 6× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-12 06:53 UTCEG score recompute
- 2026-07-12 05:46 UTCEPSS rescore
- 2026-07-11 17:48 UTCEG score recompute
- 2026-07-11 04:43 UTCEG score recompute
- 2026-07-10 15:38 UTCEG score recompute
- 2026-07-10 15:37 UTCMITRE cvelistV5first tracked
Related CVEs(same CWE)
Same CWE
10 shownCWE-918
Frequently asked(5)
What is CVE-2026-56676?
CVE-2026-56676 is a high vulnerability published on July 10, 2026. 9Router is an AI router & token saver. Prior to 0.5.2, 9router validates image URLs by resolving the host before fetching, but open-sse/translator/concerns/image.js performs the later server-side image fetch with a separate DNS resolution. An authenticated attacker with access to the LLM proxy can…
When was CVE-2026-56676 disclosed?
CVE-2026-56676 was first published in the National Vulnerability Database on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-56676 actively exploited?
CVE-2026-56676 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 5.0% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-56676?
CVE-2026-56676 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-56676?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-56676, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
Explore the affected products and dependency analysis for CVE-2026-56676
Is Your Infrastructure Affected by CVE-2026-56676?
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