CVE-2026-74842

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreHIGH confidence

Score 6.3 from GitHub Security Advisory (severity: LOW) published 2026-08-17. a secondary CVSS source baseline 6.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 5 sources updated this weekElevated
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

A vulnerability was found in Kira-Pgr PromptShopMCP up to 5bc0cd17358e19a5415d11a531088170d7b81452. Affected is the function download_image of the file server.py of the component Image-Toolkit-MCP-Server. Performing a manipulation of the argument image_url results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.

CVSS v3
6.3
EG Score
6.3(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity63% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 17, 2026

Last Modified

August 20, 2026

Advisory Details (2)

Auto-updated Aug 17, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic

GitHub - Kira-Pgr/PromptShopMCP: Use AI to edit image in Claude Desktop / Cursor (AI P图) · GitHub

https://github.com/Kira-Pgr/PromptShopMCP/
generic🟡 PoC Available

Server-Side Request Forgery (SSRF) in Image-Toolkit-MCP-Server via generate_image_from_url and remove_background · Issue #4 · Kira-Pgr/PromptShopMCP · GitHub

https://github.com/Kira-Pgr/PromptShopMCP/issues/4

Vendor Advisories for CVE-2026-74842(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 19× in last 7d / 19× 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.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 12:59 UTCGHSA enrichment
  3. 2026-08-19 18:18 UTCEG score recompute
  4. 2026-08-19 18:17 UTCGHSA enrichment
  5. 2026-08-19 17:04 UTCEPSS rescore
  6. 2026-08-18 15:18 UTCEG score recompute
  7. 2026-08-18 15:18 UTCGHSA enrichment
  8. 2026-08-18 15:18 UTCNVD updateCVSS v4 → 2.1
  9. 2026-08-18 14:51 UTCEG score recompute
  10. 2026-08-18 14:51 UTCGHSA enrichment
  11. 2026-08-18 14:29 UTCMITRE cvelistV5CVSS v4 → 5.3
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 13:10 UTCEG score recompute
  15. 2026-08-18 13:10 UTCGHSA enrichment
  16. 2026-08-17 11:42 UTCEG score recompute
  17. 2026-08-17 11:37 UTCNVD updateCVSS v4 → 2.1
  18. 2026-08-17 10:38 UTCEG score recompute
  19. 2026-08-17 10:37 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-74842?
CVE-2026-74842 is a medium vulnerability published on August 17, 2026. A vulnerability was found in Kira-Pgr PromptShopMCP up to 5bc0cd17358e19a5415d11a531088170d7b81452. Affected is the function downloadimage of the file server.py of the component Image-Toolkit-MCP-Server. Performing a manipulation of the argument imageurl results in server-side request forgery. The…
When was CVE-2026-74842 disclosed?
CVE-2026-74842 was first published in the National Vulnerability Database on August 17, 2026, with the most recent update on August 20, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-74842 actively exploited?
CVE-2026-74842 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 81.8% of all scored CVEs.
What is the CVSS score of CVE-2026-74842?
CVE-2026-74842 has a CVSS v3 base score of 6.3 (NVD).
How do I remediate CVE-2026-74842?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-74842, 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-2026-74842

Explore →

Is Your Infrastructure Affected by CVE-2026-74842?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs