CVE-2026-40348

HIGHNVD 7.77.7
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.7 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 70% 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, nvd
Trending — 3 sources updated this weekElevated
7.7
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.7Exploit: NoneExposed: 0

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

Movary is a self hosted web app to track and rate a user's watched movies. Prior to version 0.71.1, an ordinary authenticated user can trigger server-side requests to arbitrary internal targets through POST /settings/jellyfin/server-url-verify. The endpoint accepts a user-controlled URL, appends /system/info/public, and sends a server-side HTTP request with Guzzle. Because there is no restriction on internal hosts, loopback addresses, or private network ranges, this can be abused for SSRF and internal network probing. Any ordinary authenticated user can use this endpoint to make the server connect to arbitrary internal targets and distinguish between different network states. This enables SSRF-based internal reconnaissance, including host discovery, port-state probing, and service fingerprinting. In certain deployments, it may also be usable to reach internal administrative services or cloud metadata endpoints that are not directly accessible from the outside. Version 0.71.1 fixes the issue.

CVSS v3
7.7
EG Score
7.7(medium)
EG Risk
51(Track)
EG Risk 51/100SSVC: 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
Severity77% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
31%
KEV
Not listed

Published

April 18, 2026

Last Modified

April 27, 2026

Advisory Details (4)

Auto-updated Jun 4, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
github Patch Available🟡 PoC Available

Authenticated Server-Side Request Forgery (SSRF) via Jellyfin Server URL Verification Allows Internal Network Probing · Advisory · leepeuker/movary · GitHub

https://github.com/leepeuker/movary/security/advisories/GHSA-2m2v-v563-qqvj
github_release Patch Available

0.71.1

Patch available: leepeuker/movary 0.71.1

https://github.com/leepeuker/movary/releases/tag/0.71.1
github_pr Patch Available

Add basic SSFR check for Jellyfin and Plex

Patch available: leepeuker/movary 0.71.1 (PR #751 merged 2026-04-11)

https://github.com/leepeuker/movary/pull/751
github_commit Patch Available

commit d459b3513293 (leepeuker/movary)

Patch available: leepeuker/movary 0.71.1 (contains commit d459b3513293)

https://github.com/leepeuker/movary/commit/d459b3513293d41254f7093aef07010a8e5dcf04

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 40× 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. 2026-07-26 14:54 UTCEPSS rescore
  2. 2026-07-26 14:54 UTCEPSS rescore
  3. 2026-07-25 14:18 UTCEPSS rescore
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  9. 2026-07-23 03:11 UTCEG score recompute
  10. 2026-07-22 14:08 UTCEPSS rescore
  11. 2026-07-21 15:24 UTCEPSS rescore
  12. 2026-07-20 17:08 UTCEPSS rescore
  13. 2026-07-20 07:34 UTCOSV refresh
  14. 2026-07-19 14:31 UTCEPSS rescore
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  1. 2026-07-09 19:10 UTCEPSS rescore
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  3. 2026-07-07 13:46 UTCEPSS rescore
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  11. 2026-06-30 23:22 UTCEPSS rescore
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  15. 2026-06-27 03:08 UTCEPSS rescore
  16. 2026-06-25 13:49 UTCEPSS rescore
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  18. 2026-06-24 14:05 UTCEPSS rescore
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-22 14:25 UTCEPSS rescore
  21. 2026-06-22 14:25 UTCEPSS rescore
  22. 2026-06-21 14:56 UTCEPSS rescore
  23. 2026-06-21 14:56 UTCEPSS rescore
  24. 2026-06-21 01:59 UTCEPSS rescore
  25. 2026-06-19 19:25 UTCEPSS rescore
  26. 2026-06-18 17:52 UTCEPSS rescore
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  30. 2026-06-15 17:49 UTCEPSS rescore
  31. 2026-06-13 23:00 UTCEPSS rescore
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  35. 2026-06-10 22:18 UTCEPSS rescore
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  38. 2026-06-08 14:17 UTCEPSS rescore
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  40. 2026-06-06 13:47 UTCEPSS rescore
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  43. 2026-06-04 13:12 UTCEPSS rescore
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  45. 2026-06-01 13:52 UTCEPSS rescore
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  48. 2026-05-31 22:30 UTCEPSS rescore
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  50. 2026-05-31 00:16 UTCEPSS rescore
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  53. 2026-05-29 13:44 UTCEPSS rescore
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  58. 2026-05-27 13:40 UTCEPSS rescore
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  61. 2026-05-26 13:44 UTCEPSS rescore
  62. 2026-05-26 07:18 UTCEPSS rescore
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  64. 2026-05-20 22:38 UTCEPSS rescore
  65. 2026-05-20 22:38 UTCEPSS rescore
  66. 2026-05-20 16:49 UTCEG score recompute
  67. 2026-05-20 11:22 UTCEPSS rescore
  68. 2026-05-20 11:22 UTCEPSS rescore

Frequently asked(5)

What is CVE-2026-40348?
CVE-2026-40348 is a high vulnerability published on April 18, 2026. Movary is a self hosted web app to track and rate a user's watched movies. Prior to version 0.71.1, an ordinary authenticated user can trigger server-side requests to arbitrary internal targets through POST /settings/jellyfin/server-url-verify. The endpoint accepts a user-controlled URL, appends…
When was CVE-2026-40348 disclosed?
CVE-2026-40348 was first published in the National Vulnerability Database on April 18, 2026, with the most recent update on April 27, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-40348 actively exploited?
CVE-2026-40348 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 30.5% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-40348?
CVE-2026-40348 has a CVSS v3 base score of 7.7 (NVD).
How do I remediate CVE-2026-40348?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-40348, 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.

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