CVE-2026-11897

HIGHNVD 7.57.5
EchelonGraph scoreMEDIUM confidence

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

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-07-30. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
7.5EG
EchelonGraph verdictPlan mitigationRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is referenced (a reference tagged "Patch", often a source commit), but no release containing it is confirmed — find the release that contains it; until it is applied, mitigate (WAF / firewall / segmentation).

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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)
Severity75% × 45%
The EG Score, 7.5 of 10.
Exploitation0.5% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (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: A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.
EPSS PROB
0.5%
EPSS %ILE
43rd
KEV
Not listed

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is referenced, but no release containing it is confirmed. Check the referenced fix and the vendor's advisory for a release that contains it and apply that within your standard update timelines at low or medium mission impact and sooner than that at high; until then, restrict network exposure of the affected system or apply the vendor's mitigation.

Exploitation none (CISA Vulnrichment) · Automatable yes (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)14 days if the affected system is publicly exposed; 60 days if it is not.

In CISA KEV no (CISA's KEV catalog) · Automatable yes (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 30, 2026

Last Modified

August 4, 2026

Advisory Details (1)

Auto-updated Jul 30, 2026
Fix referenced — no release confirmed yet.
Web page

Security Bulletin: IBM WebSphere Application Server Liberty is affected by a denial of service vulnerability with HTTP/2 (CVE-2026-11897)

https://www.ibm.com/support/pages/node/7280695

Vendor Advisories for CVE-2026-11897(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 11× in last 7d / 66× 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 228 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 128 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  2. 2026-10-12 16:37 UTCEG score recompute
  3. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  4. 2026-10-11 20:12 UTCEG score recompute
  5. 2026-10-11 18:25 UTCEG score recompute
  6. 2026-10-11 14:58 UTCEG score recompute
  7. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  8. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  9. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  10. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  11. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  12. 2026-10-06 23:53 UTCEG score recompute
  13. 2026-10-06 23:53 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  15. 2026-10-05 20:01 UTCEG score recompute
  16. 2026-10-05 20:01 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  18. 2026-10-04 23:57 UTCEG score recompute
  19. 2026-10-04 23:57 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  20. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  21. 2026-10-04 06:39 UTCEG score recompute
  22. 2026-10-04 06:39 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  24. 2026-10-02 16:58 UTCEG score recompute
  25. 2026-10-02 16:58 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
Show 75 more
  1. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  2. 2026-10-01 15:21 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  3. 2026-10-01 02:54 UTCEG score recompute
  4. 2026-10-01 02:54 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  6. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  7. 2026-09-29 06:54 UTCEG score recompute
  8. 2026-09-29 06:54 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  9. 2026-09-28 13:50 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  10. 2026-09-28 07:27 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  11. 2026-09-27 19:01 UTCEG score recompute
  12. 2026-09-27 19:01 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  13. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.5% · 42nd percentile
  14. 2026-09-25 04:57 UTCEG score recompute
  15. 2026-09-25 04:57 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  16. 2026-09-24 09:57 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-09-23 21:30 UTCEG score recompute
  18. 2026-09-23 21:30 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  19. 2026-09-23 13:47 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  20. 2026-09-23 03:40 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  21. 2026-09-22 15:14 UTCEG score recompute
  22. 2026-09-22 15:14 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  23. 2026-09-20 21:18 UTCEG score recompute
  24. 2026-09-20 21:17 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  26. 2026-09-19 23:47 UTCEG score recompute
  27. 2026-09-19 23:47 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-09-19 04:16 UTCEG score recompute
  29. 2026-09-19 04:16 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  30. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  31. 2026-09-18 14:53 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  32. 2026-09-18 01:23 UTCEG score recompute
  33. 2026-09-18 01:23 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  34. 2026-09-17 01:29 UTCEG score recompute
  35. 2026-09-17 01:29 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  36. 2026-09-16 05:36 UTCEG score recompute
  37. 2026-09-16 05:36 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  38. 2026-09-16 05:14 UTCEPSS rescoreEPSS 0.3% · 23rd percentile
  39. 2026-09-15 03:20 UTCEG score recompute
  40. 2026-09-15 03:20 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  41. 2026-09-14 10:41 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  42. 2026-09-13 22:12 UTCEG score recompute
  43. 2026-09-13 22:12 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  44. 2026-09-13 16:46 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  45. 2026-09-13 09:45 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-09-12 21:19 UTCEG score recompute
  47. 2026-09-12 21:19 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  48. 2026-09-12 15:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  49. 2026-09-12 08:53 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-09-11 20:25 UTCEG score recompute
  51. 2026-09-11 20:25 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  52. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  53. 2026-09-11 09:36 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  54. 2026-09-11 07:29 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  55. 2026-09-10 19:03 UTCEG score recompute
  56. 2026-09-10 19:03 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  57. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  58. 2026-09-10 03:34 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-09-09 07:16 UTCEG score recompute
  60. 2026-09-09 07:16 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  61. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  62. 2026-09-07 19:59 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-09-06 20:55 UTCEG score recompute
  64. 2026-09-06 20:55 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  65. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  66. 2026-09-06 07:16 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  67. 2026-09-05 18:50 UTCEG score recompute
  68. 2026-09-05 18:50 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-09-05 04:54 UTCEG score recompute
  70. 2026-09-05 04:54 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  71. 2026-09-04 11:27 UTCEG score recompute
  72. 2026-09-04 11:27 UTCGHSA enrichmentGHSA-89rj-ccwc-wmpm · GitHub severity HIGH · GitHub CVSS 7.5
  73. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  74. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 22nd percentile
  75. 2026-09-01 22:38 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-11897?
CVE-2026-11897 is a high-severity vulnerability; its CVE record was published on July 30, 2026. IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.7 is vulnerable to a denial of service, caused by sending a specially crafted request. A remote attacker could exploit this vulnerability to cause the server to consume memory resources.
When was the CVE record for CVE-2026-11897 published?
The CVE record for CVE-2026-11897 was published on July 30, 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 August 4, 2026; the record at its source may have been updated since.
Is CVE-2026-11897 actively exploited?
CVE-2026-11897 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (43rd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-11897?
CVE-2026-11897 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-11897?
A fix for CVE-2026-11897 is referenced (a reference tagged "Patch", often a source commit), but EchelonGraph has no release containing it on record. Check that reference and the vendor's advisory for a release that contains the fix and update to it; until then, restrict network exposure of the affected system or apply the vendor's mitigation. The vendor advisories EchelonGraph has for CVE-2026-11897 are linked in the Vendor Advisories panel on this page.

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