CVE-2026-58177

CRITICALNVD 9.89.8
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to NVD's CVSS score.

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.6% (46th percentile of EPSS-scored CVEs). GitHub Security Advisory CVSS 8.1 is lower than this score; a lower GitHub score revises it only when its advisory is newer than the CVE record's last change, and this advisory (published 2026-07-29) is not newer than that change (2026-07-31), so it does not.

Triggered by: Headline CVSS from NVD CVSS v3
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 9.8Exploit: None knownExposed services: Not assessed

The CVE record names the fixed release — apply it.

The Apache Traffic Server Cripts framework has out-of-bounds writes, path traversal, and use-after-free errors.

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

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

CVSS v3
9.8
EG Score
9.8CRITICALmedium confidence
EG Risk
44
EG Risk 44/100

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 (value × EchelonGraph’s weight)
Severity98% × 45%
The EG Score, 9.8 of 10.
Exploitation0.6% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at every mission impact level.
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: The CVE record names the fixed release. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
46th
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at every mission impact level.

The CVE record names the fixed release. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)60 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

July 29, 2026

Last Modified

July 31, 2026

Advisory Details (1)

Auto-updated Oct 10, 2026
Fix named in the CVE record.

Vendor Advisories for CVE-2026-58177(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 16× in last 7d / 92× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 395 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 295 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-14 01:52 UTCEG score recompute
  2. 2026-10-14 01:52 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  3. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  4. 2026-10-12 22:07 UTCEG score recompute
  5. 2026-10-12 22:06 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  6. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  7. 2026-10-12 15:53 UTCEG score recompute
  8. 2026-10-12 06:41 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  9. 2026-10-11 19:37 UTCEG score recompute
  10. 2026-10-11 16:52 UTCEG score recompute
  11. 2026-10-11 14:14 UTCEG score recompute
  12. 2026-10-11 13:49 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  13. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  14. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  15. 2026-10-08 17:13 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  16. 2026-10-07 23:48 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  17. 2026-10-07 04:13 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  18. 2026-10-07 00:02 UTCEG score recompute
  19. 2026-10-07 00:02 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  20. 2026-10-06 15:18 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  21. 2026-10-05 17:43 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  22. 2026-10-05 02:38 UTCEG score recompute
  23. 2026-10-05 02:38 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  24. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  25. 2026-10-04 12:35 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
Show 75 more
  1. 2026-10-04 07:04 UTCEG score recompute
  2. 2026-10-04 07:04 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  3. 2026-10-03 14:26 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  4. 2026-10-03 03:11 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  5. 2026-10-02 17:58 UTCEG score recompute
  6. 2026-10-02 17:58 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  7. 2026-10-02 17:56 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  8. 2026-10-01 19:50 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  9. 2026-10-01 16:17 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  10. 2026-10-01 12:12 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  11. 2026-10-01 07:40 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  12. 2026-10-01 03:37 UTCEG score recompute
  13. 2026-10-01 03:37 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  14. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.6% · 46th percentile
  15. 2026-09-29 15:22 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  16. 2026-09-29 07:37 UTCEG score recompute
  17. 2026-09-29 07:37 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  18. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  19. 2026-09-28 12:54 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  20. 2026-09-28 07:23 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  21. 2026-09-28 03:19 UTCEG score recompute
  22. 2026-09-28 03:19 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  23. 2026-09-27 13:48 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  24. 2026-09-26 15:59 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  25. 2026-09-25 09:50 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  26. 2026-09-25 05:46 UTCEG score recompute
  27. 2026-09-25 05:46 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  28. 2026-09-24 14:04 UTCEPSS rescoreEPSS 0.6% · 45th percentile
  29. 2026-09-24 10:19 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  30. 2026-09-24 06:15 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  31. 2026-09-24 01:55 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  32. 2026-09-23 21:51 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  33. 2026-09-23 09:50 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  34. 2026-09-23 05:46 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  35. 2026-09-23 01:42 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  36. 2026-09-22 21:37 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  37. 2026-09-22 15:50 UTCEG score recompute
  38. 2026-09-22 15:50 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  39. 2026-09-20 20:16 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  40. 2026-09-20 11:16 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  41. 2026-09-20 04:32 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  42. 2026-09-20 00:24 UTCEG score recompute
  43. 2026-09-20 00:24 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  44. 2026-09-19 04:58 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  45. 2026-09-19 00:05 UTCEG score recompute
  46. 2026-09-19 00:05 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  47. 2026-09-18 19:28 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  48. 2026-09-18 19:25 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  49. 2026-09-18 15:19 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  50. 2026-09-18 09:55 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  51. 2026-09-18 05:50 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  52. 2026-09-18 01:46 UTCEG score recompute
  53. 2026-09-18 01:46 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  54. 2026-09-17 19:31 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  55. 2026-09-17 10:20 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  56. 2026-09-17 06:15 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  57. 2026-09-17 01:37 UTCEG score recompute
  58. 2026-09-17 01:37 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  59. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  60. 2026-09-16 11:49 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  61. 2026-09-16 05:49 UTCEG score recompute
  62. 2026-09-16 05:49 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  63. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  64. 2026-09-15 08:13 UTCEG score recompute
  65. 2026-09-15 08:13 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  66. 2026-09-15 03:11 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  67. 2026-09-14 15:06 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  68. 2026-09-14 10:14 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  69. 2026-09-14 05:47 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  70. 2026-09-14 01:43 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  71. 2026-09-13 21:37 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  72. 2026-09-13 17:32 UTCEG score recompute
  73. 2026-09-13 17:32 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1
  74. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 25th percentile
  75. 2026-09-13 13:28 UTCGHSA enrichmentGHSA-xm2f-jc7r-hmhj · GitHub severity HIGH · GitHub CVSS 8.1

Frequently asked(5)

What is CVE-2026-58177?
CVE-2026-58177 is a critical-severity vulnerability; its CVE record was published on July 29, 2026. The Apache Traffic Server Cripts framework has out-of-bounds writes, path traversal, and use-after-free errors. This issue affects Apache Traffic Server: from 10.0.0 through 10.1.3. Users are recommended to upgrade to version 10.1.4, which fix the issue.
When was the CVE record for CVE-2026-58177 published?
The CVE record for CVE-2026-58177 was published on July 29, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of July 31, 2026; the record at its source may have been updated since.
Is CVE-2026-58177 actively exploited?
CVE-2026-58177 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.6% probability of exploitation in the next 30 days (46th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-58177?
CVE-2026-58177 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-58177?
The CVE record for CVE-2026-58177 names the fix: "Users are recommended to upgrade to version 10.1.4, which fix the issue." The vendor advisories EchelonGraph has for CVE-2026-58177 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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