CVE-2026-39369

HIGHNVD 7.67.6
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

Score 7.6 from GitHub Security Advisory (severity: HIGH) published 2026-04-08. NVD baseline CVSS 7.6; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this weekElevated

Also known asEUVD-2026-19883 (ENISA EUVD) · GHSA-f4f9-627c-jh33 (GitHub Security Advisories)Source: ENISA EUVD

7.6EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.6Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

WWBN AVideo is an open source video platform. In versions 26.0 and prior, objects/aVideoEncoderReceiveImage.json.php allowed an authenticated uploader to fetch attacker-controlled same-origin /videos/... URLs, bypass traversal scrubbing, and expose server-local files through the GIF poster storage path. The vulnerable GIF branch could be abused to read local files such as /etc/passwd or application source files and republish those bytes through a normal public GIF media URL.

CVSS v3
7.6
EG Score
7.6HIGHmedium confidence
EG Risk
50
EG Risk 50/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity76% × 45%
Impact severity (EG Severity): CVSS 7.6 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.4%
EPSS %ILE
35th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.6): severity, escalated by confirmed exploitation. This CVE's 7.6 is its impact severity (EG Severity), not escalated.

EG Severity
7.6 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.4% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

April 7, 2026

Last Modified

July 24, 2026

Advisory Details (2)

Auto-updated Jun 11, 2026
Patch available. Sources: github_commit, github.
GitHub advisoryMentions a patch (unverified)

GIF poster fetch bypasses traversal scrubbing and exposes local files through public media URLs · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-f4f9-627c-jh33
GitHub commit Patch Available

commit 2375eb5e0a6d (WWBN/AVideo)

Patch available: WWBN/AVideo 29.0 (contains commit 2375eb5e0a6d)

https://github.com/WWBN/AVideo/commit/2375eb5e0a6d3cbcfb05377657d0820a7d470b1d

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
composerWWBN/AVideo—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
WWBN/AVideo—
  • every version through 26.0: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 10× in last 7d / 40× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 99 of 234 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 1 repeat row among the latest 100 is merged into the row it repeats. The 135 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  2. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  3. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  4. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  5. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  6. 2026-10-25 14:32 UTCEG score recompute
  7. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  8. 2026-10-24 11:22 UTCEG score recompute
  9. 2026-10-24 11:22 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  10. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  11. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  12. 2026-10-21 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  13. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  15. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  16. 2026-10-18 03:43 UTCEG score recompute
  17. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  18. 2026-10-17 15:06 UTCEG score recompute
  19. 2026-10-17 15:05 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  20. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  21. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  22. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  23. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  24. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  25. 2026-10-12 16:10 UTCEG score recompute
Show 74 more
  1. 2026-10-11 19:52 UTCEG score recompute
  2. 2026-10-11 17:06 UTCEG score recompute
  3. 2026-10-11 14:32 UTCEG score recompute
  4. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  5. 2026-10-10 22:47 UTCOSV refresh
  6. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  7. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  8. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  9. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  10. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  11. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  12. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  13. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  14. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  15. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  16. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  17. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  18. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  19. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.5% · 41st percentile
  20. 2026-09-21 10:49 UTCOSV refresh
  21. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  25. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  26. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  27. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  28. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  29. 2026-09-11 14:53 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  30. 2026-09-11 09:37 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  31. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  32. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  33. 2026-09-07 16:01 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  34. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  35. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  36. 2026-09-02 14:12 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  37. 2026-09-02 08:44 UTCOSV refresh
  38. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  39. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  40. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  41. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  42. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  43. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  44. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  45. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  46. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  47. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  48. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  49. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  50. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  51. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  52. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  53. 2026-08-16 07:54 UTCEG score recompute
  54. 2026-08-16 07:54 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  55. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  56. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  57. 2026-08-14 18:31 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  58. 2026-08-14 05:23 UTCEG score recompute
  59. 2026-08-14 05:23 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  60. 2026-08-13 22:00 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  61. 2026-08-13 09:38 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  62. 2026-08-12 19:38 UTCEG score recompute
  63. 2026-08-12 19:38 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  64. 2026-08-12 13:51 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  65. 2026-08-11 19:49 UTCEG score recompute
  66. 2026-08-11 19:49 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  67. 2026-08-11 13:43 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  68. 2026-08-11 03:12 UTCEG score recompute
  69. 2026-08-11 03:12 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  70. 2026-08-11 00:00 UTCEPSS rescoreEPSS 0.4% · 33rd percentile
  71. 2026-08-10 06:00 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  72. 2026-08-09 17:27 UTCEG score recompute
  73. 2026-08-09 17:27 UTCGHSA enrichmentGHSA-f4f9-627c-jh33 · GitHub severity HIGH · GitHub CVSS 7.6
  74. 2026-08-09 13:46 UTCEPSS rescoreEPSS 0.4% · 33rd percentile

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Frequently asked(5)

What is CVE-2026-39369?
CVE-2026-39369 is a high-severity vulnerability; its CVE record was published on April 7, 2026. WWBN AVideo is an open source video platform. In versions 26.0 and prior, objects/aVideoEncoderReceiveImage.json.php allowed an authenticated uploader to fetch attacker-controlled same-origin /videos/... URLs, bypass traversal scrubbing, and expose server-local files through the GIF poster storage…
When was the CVE record for CVE-2026-39369 published?
The CVE record for CVE-2026-39369 was published on April 7, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 24, 2026; the record at its source may have been updated since.
Is CVE-2026-39369 actively exploited?
CVE-2026-39369 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (35th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-39369?
CVE-2026-39369 has a CVSS v3 base score of 7.6 (NVD).
How do I remediate CVE-2026-39369?
A fix for CVE-2026-39369 is available: update to the fixed version the vendor names in its advisory.

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