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 / 84× 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 183 total refreshes for this CVE.

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

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 75.1% 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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