CVE-2026-58153

HIGHPre-NVD 8.38.3—
EchelonGraph scoreMEDIUM confidence

Score 8.3 from GitHub Security Advisory published 2026-07-29. A secondary CVSS source baseline 8.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
8.3EG
EchelonGraph verdictPlan mitigationSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 8.3Exploit: None knownExposed services: Not assessed

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

Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1.

This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3.

Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.

CVSS v3
8.3
EG Score
8.3HIGHmedium confidence
EG Risk
53
EG Risk 53/100CISA 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
Severity83% × 45%
Exploitation1% × 40%
Automatability100% × 15%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.
EPSS PROB
0.6%
EPSS %ILE
49th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines at low or medium mission impact and sooner than that at high, and watch the vendor's advisory for the fix.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (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

July 29, 2026

Last Modified

August 3, 2026

Advisory Details (1)

Auto-updated Jul 29, 2026
No fix on record yet.
generic
https://lists.apache.org/thread/5prl9glcm9g2swnq9hqxvnokylm1gr6d

Vendor Advisories for CVE-2026-58153(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(2 across 2 ecosystems)
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
trafficserver8.1.1+ds-1.1 ... 9.2.5+ds-1 (40 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
trafficserver9.2.0+ds-2 ... 9.2.5+ds-1 (14 versions)
  • every version on: no fix on record
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 71× 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 223 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-58153?
CVE-2026-58153 is a high vulnerability published on July 29, 2026. Apache Traffic Server forwards HTTP/2 origin trailers to HTTP/1 clients without proper chunked framing when converting HTTP/2 to HTTP/1. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 9.2.15 or 10.1.4, which fix the issue.
When was CVE-2026-58153 disclosed?
CVE-2026-58153 was first published on July 29, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-58153 actively exploited?
CVE-2026-58153 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (49th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58153?
CVE-2026-58153 has a CVSS base score of 8.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-58153?
No fix for CVE-2026-58153 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-58153 are linked in the Vendor Advisories panel on this page.

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