CVE-2026-13189

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: 1%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, insufficient validation of the language parameter in the spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests.

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%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
44%
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 SpellChecker DictionaryLanguage Path Traversal Vulnerability (CVE-2026-13189) - Telerik UI for ASP.NET AJAX

https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-spellchecker-dictionarylanguage-path-traversal-CVE-2026-13189

Vendor Advisories for CVE-2026-13189(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 / 86× 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 184 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-13189?
CVE-2026-13189 is a high vulnerability published on July 22, 2026. In Progress® Telerik® UI for AJAX prior to v2026.2.708, insufficient validation of the language parameter in the spell check handler may allow an attacker to influence server-side file path resolution and trigger unintended server-side requests.
When was CVE-2026-13189 disclosed?
CVE-2026-13189 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-2026-13189 actively exploited?
CVE-2026-13189 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.2% of all scored CVEs.
What is the CVSS score of CVE-2026-13189?
CVE-2026-13189 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-13189?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-13189, 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.

Dependency Blast Radius

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