CVE-2026-72748

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory published 2026-08-11. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1.2%CVSS: 9.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

AVideo contains an unauthenticated arbitrary file write vulnerability in the aVideoEncoderChunk.json.php endpoint that allows remote attackers to write up to 4 GB of arbitrary content to the server filesystem via HTTP PUT requests without authentication. Attackers can exhaust disk space causing denial of service, poison the video encoding pipeline, or chain this with local file inclusion to achieve remote code execution.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
72
EG Risk 72/100CISA SSVC

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
Severity91% × 45%
Exploitation40% × 40%
Automatability100% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
1.2%
EPSS %ILE
66th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 11, 2026

Last Modified

September 8, 2026

Advisory Details (3)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github.
github Patch Available🟡 PoC Available

Unauthenticated Arbitrary File Write in AVideo · Advisory · WWBN/AVideo · GitHub

https://github.com/WWBN/AVideo/security/advisories/GHSA-v7p7-jccx-h37c
generic

AVideo Unauthenticated Arbitrary File Write via aVideoEncoderChunk.json.php | Advisories | VulnCheck

https://www.vulncheck.com/advisories/avideo-unauthenticated-arbitrary-file-write-via-avideoencoderchunk-json-php
github_commit

commit 1b55a9b3c491 (WWBN/AVideo)

Fix landed in WWBN/AVideo commit 1b55a9b3c491 — awaiting tagged release

https://github.com/WWBN/AVideo/commit/1b55a9b3c4911d2f31594ce2e60566c70c6b95e8

Vendor Advisories for CVE-2026-72748(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 31× in last 7d / 166× 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.

Showing the most recent 100 of 361 total refreshes for this CVE.

  1. 2026-10-05 18:08 UTCEG score recompute
  2. 2026-10-05 18:08 UTCGHSA enrichment
  3. 2026-10-05 17:43 UTCEPSS rescore
  4. 2026-10-05 07:42 UTCGHSA enrichment
  5. 2026-10-05 02:34 UTCEG score recompute
  6. 2026-10-05 02:34 UTCGHSA enrichment
  7. 2026-10-04 23:22 UTCEPSS rescore
  8. 2026-10-04 22:47 UTCGHSA enrichment
  9. 2026-10-04 16:38 UTCGHSA enrichment
  10. 2026-10-04 12:21 UTCGHSA enrichment
  11. 2026-10-04 08:16 UTCGHSA enrichment
  12. 2026-10-04 04:16 UTCGHSA enrichment
  13. 2026-10-03 21:27 UTCEG score recompute
  14. 2026-10-03 21:27 UTCGHSA enrichment
  15. 2026-10-03 14:26 UTCEPSS rescore
  16. 2026-10-03 02:34 UTCGHSA enrichment
  17. 2026-10-02 22:27 UTCEG score recompute
  18. 2026-10-02 22:27 UTCGHSA enrichment
  19. 2026-10-02 16:19 UTCGHSA enrichment
  20. 2026-10-02 16:19 UTCGHSA enrichment
  21. 2026-10-02 08:45 UTCEG score recompute
  22. 2026-10-02 08:45 UTCGHSA enrichment
  23. 2026-10-01 19:50 UTCEPSS rescore
  24. 2026-10-01 13:48 UTCGHSA enrichment
  25. 2026-10-01 10:00 UTCGHSA enrichment
Show 75 more
  1. 2026-10-01 06:01 UTCGHSA enrichment
  2. 2026-10-01 02:14 UTCGHSA enrichment
  3. 2026-09-30 22:19 UTCEG score recompute
  4. 2026-09-30 22:19 UTCGHSA enrichment
  5. 2026-09-29 05:16 UTCEG score recompute
  6. 2026-09-29 05:16 UTCGHSA enrichment
  7. 2026-09-28 13:58 UTCEG score recompute
  8. 2026-09-28 13:58 UTCGHSA enrichment
  9. 2026-09-28 13:52 UTCEPSS rescore
  10. 2026-09-28 09:55 UTCGHSA enrichment
  11. 2026-09-28 06:08 UTCGHSA enrichment
  12. 2026-09-28 02:20 UTCGHSA enrichment
  13. 2026-09-27 16:55 UTCEG score recompute
  14. 2026-09-27 16:55 UTCGHSA enrichment
  15. 2026-09-27 13:48 UTCEPSS rescore
  16. 2026-09-27 11:02 UTCEG score recompute
  17. 2026-09-27 11:02 UTCGHSA enrichment
  18. 2026-09-26 15:59 UTCEPSS rescore
  19. 2026-09-25 12:09 UTCGHSA enrichment
  20. 2026-09-25 07:44 UTCGHSA enrichment
  21. 2026-09-25 03:56 UTCEG score recompute
  22. 2026-09-25 03:56 UTCGHSA enrichment
  23. 2026-09-24 12:27 UTCGHSA enrichment
  24. 2026-09-24 08:32 UTCGHSA enrichment
  25. 2026-09-24 04:44 UTCGHSA enrichment
  26. 2026-09-24 00:55 UTCGHSA enrichment
  27. 2026-09-23 21:07 UTCEG score recompute
  28. 2026-09-23 21:07 UTCGHSA enrichment
  29. 2026-09-23 17:54 UTCEPSS rescore
  30. 2026-09-23 13:17 UTCGHSA enrichment
  31. 2026-09-23 08:43 UTCGHSA enrichment
  32. 2026-09-23 04:55 UTCGHSA enrichment
  33. 2026-09-23 01:05 UTCGHSA enrichment
  34. 2026-09-22 21:14 UTCEG score recompute
  35. 2026-09-22 21:14 UTCGHSA enrichment
  36. 2026-09-22 12:42 UTCGHSA enrichment
  37. 2026-09-22 08:40 UTCGHSA enrichment
  38. 2026-09-22 04:52 UTCGHSA enrichment
  39. 2026-09-22 01:01 UTCGHSA enrichment
  40. 2026-09-21 21:13 UTCEG score recompute
  41. 2026-09-21 21:13 UTCGHSA enrichment
  42. 2026-09-21 21:09 UTCEPSS rescore
  43. 2026-09-21 10:59 UTCGHSA enrichment
  44. 2026-09-21 06:44 UTCGHSA enrichment
  45. 2026-09-21 00:55 UTCGHSA enrichment
  46. 2026-09-20 19:39 UTCGHSA enrichment
  47. 2026-09-20 10:26 UTCGHSA enrichment
  48. 2026-09-20 05:03 UTCGHSA enrichment
  49. 2026-09-20 01:08 UTCGHSA enrichment
  50. 2026-09-19 21:19 UTCGHSA enrichment
  51. 2026-09-19 17:16 UTCEG score recompute
  52. 2026-09-19 17:16 UTCGHSA enrichment
  53. 2026-09-19 12:25 UTCGHSA enrichment
  54. 2026-09-19 06:17 UTCGHSA enrichment
  55. 2026-09-19 02:03 UTCGHSA enrichment
  56. 2026-09-18 22:13 UTCEG score recompute
  57. 2026-09-18 22:13 UTCGHSA enrichment
  58. 2026-09-18 19:28 UTCEPSS rescore
  59. 2026-09-18 17:13 UTCGHSA enrichment
  60. 2026-09-18 13:00 UTCGHSA enrichment
  61. 2026-09-18 08:29 UTCGHSA enrichment
  62. 2026-09-18 04:35 UTCGHSA enrichment
  63. 2026-09-18 00:47 UTCEG score recompute
  64. 2026-09-18 00:47 UTCGHSA enrichment
  65. 2026-09-17 13:59 UTCGHSA enrichment
  66. 2026-09-17 08:14 UTCGHSA enrichment
  67. 2026-09-17 04:26 UTCGHSA enrichment
  68. 2026-09-17 00:36 UTCEG score recompute
  69. 2026-09-17 00:36 UTCGHSA enrichment
  70. 2026-09-16 14:08 UTCEPSS rescore
  71. 2026-09-16 10:57 UTCGHSA enrichment
  72. 2026-09-16 06:09 UTCEG score recompute
  73. 2026-09-16 06:09 UTCGHSA enrichment
  74. 2026-09-16 05:15 UTCEPSS rescore
  75. 2026-09-16 02:16 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72748?
CVE-2026-72748 is a critical vulnerability published on August 11, 2026. AVideo contains an unauthenticated arbitrary file write vulnerability in the aVideoEncoderChunk.json.php endpoint that allows remote attackers to write up to 4 GB of arbitrary content to the server filesystem via HTTP PUT requests without authentication. Attackers can exhaust disk space causing…
When was CVE-2026-72748 disclosed?
CVE-2026-72748 was first published on August 11, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72748 actively exploited?
CVE-2026-72748 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1.2% probability of exploitation in the next 30 days (66th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-72748?
CVE-2026-72748 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-72748?
A fix for CVE-2026-72748 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-72748 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-72748

Explore →

Is Your Infrastructure Affected by CVE-2026-72748?

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

Book a Demo →Browse All CVEs