CVE-2026-13183

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-22. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

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

In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 22, 2026

Last Modified

August 6, 2026

Advisory Details (1)

Auto-updated Jul 22, 2026
No patch confirmed yet.
generic

Telerik Web Forms RadAsyncUpload Upload Metadata Timing Oracle Vulnerability (CVE-2026-13183) - Telerik UI for ASP.NET AJAX

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rau-timing-oracle-CVE-2026-13183

Vendor Advisories for CVE-2026-13183(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 18× in last 7d / 83× 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 193 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-13183?
CVE-2026-13183 is a high vulnerability published on July 22, 2026. In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.
When was CVE-2026-13183 disclosed?
CVE-2026-13183 was first published in the National Vulnerability Database on July 22, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-13183 actively exploited?
CVE-2026-13183 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 74.7% of all scored CVEs.
What is the CVSS score of CVE-2026-13183?
CVE-2026-13183 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-13183?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13183, 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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