CVE-2026-15656

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreHIGH confidence

Score 4.3 from GitHub Security Advisory published 2026-08-05. a secondary CVSS source baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
4.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.3Exploit: None knownExposed: 0

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

IBM Maximo Application Suite 9.2, 9.1, and 9.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the insecure link and the attacker can then obtain the cookie value by snooping the traffic.

CVSS v3
4.3
EG Score
4.3(high)
EG Risk
24(Track)
EG Risk 24/100SSVC: 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
Severity43% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
9%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 10, 2026

Advisory Details (1)

Auto-updated Aug 5, 2026
No patch confirmed yet.
generic

Security Bulletin: IBM MAS uses axios-1.15.2, protobufjs-8.0.1 and undici-7.26 which is vulnerable to multiple CVEs, and contains vulnerabilities related to missing Secure attribute on mas-redirect-uri cookie and weak HMAC Session Secret

https://www.ibm.com/support/pages/node/7282362

Vendor Advisories for CVE-2026-15656(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 / 45× 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.

  1. 2026-08-20 22:55 UTCEPSS rescore
  2. 2026-08-20 12:22 UTCEG score recompute
  3. 2026-08-20 12:22 UTCGHSA enrichment
  4. 2026-08-19 17:03 UTCEPSS rescore
  5. 2026-08-19 10:12 UTCEG score recompute
  6. 2026-08-19 10:12 UTCGHSA enrichment
  7. 2026-08-18 13:48 UTCEPSS rescore
  8. 2026-08-18 07:55 UTCEG score recompute
  9. 2026-08-18 07:55 UTCGHSA enrichment
  10. 2026-08-17 13:47 UTCEPSS rescore
  11. 2026-08-17 05:45 UTCEG score recompute
  12. 2026-08-17 05:45 UTCGHSA enrichment
  13. 2026-08-16 14:56 UTCEPSS rescore
  14. 2026-08-16 03:19 UTCEG score recompute
  15. 2026-08-16 03:19 UTCGHSA enrichment
  16. 2026-08-16 02:14 UTCEPSS rescore
  17. 2026-08-15 01:30 UTCEPSS rescore
  18. 2026-08-15 01:09 UTCGHSA enrichment
  19. 2026-08-13 22:59 UTCEG score recompute
  20. 2026-08-13 22:59 UTCGHSA enrichment
  21. 2026-08-13 22:00 UTCEPSS rescore
  22. 2026-08-12 20:50 UTCEG score recompute
  23. 2026-08-12 20:50 UTCGHSA enrichment
  24. 2026-08-12 13:50 UTCEPSS rescore
  25. 2026-08-11 18:40 UTCEG score recompute
Show 20 more
  1. 2026-08-11 18:40 UTCGHSA enrichment
  2. 2026-08-11 13:42 UTCEPSS rescore
  3. 2026-08-11 00:00 UTCEPSS rescore
  4. 2026-08-10 16:29 UTCGHSA enrichment
  5. 2026-08-09 22:18 UTCEG score recompute
  6. 2026-08-09 22:18 UTCGHSA enrichment
  7. 2026-08-09 13:46 UTCEPSS rescore
  8. 2026-08-08 20:09 UTCEG score recompute
  9. 2026-08-08 20:09 UTCGHSA enrichment
  10. 2026-08-08 16:37 UTCEPSS rescore
  11. 2026-08-07 17:59 UTCEG score recompute
  12. 2026-08-07 17:59 UTCGHSA enrichment
  13. 2026-08-06 15:49 UTCEG score recompute
  14. 2026-08-06 15:49 UTCGHSA enrichment
  15. 2026-08-06 13:46 UTCEPSS rescore
  16. 2026-08-05 19:31 UTCEG score recompute
  17. 2026-08-05 19:31 UTCGHSA enrichment
  18. 2026-08-05 16:28 UTCEG score recompute
  19. 2026-08-05 16:11 UTCEG score recompute
  20. 2026-08-05 16:10 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-15656?
CVE-2026-15656 is a medium vulnerability published on August 5, 2026. IBM Maximo Application Suite 9.2, 9.1, and 9.0 does not set the secure attribute on authorization tokens or session cookies. Attackers may be able to get the cookie values by sending a http:// link to a user or by planting this link in a site the user goes to. The cookie will be sent to the…
When was CVE-2026-15656 disclosed?
CVE-2026-15656 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-15656 actively exploited?
CVE-2026-15656 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 91.4% of all scored CVEs.
What is the CVSS score of CVE-2026-15656?
CVE-2026-15656 has a CVSS v3 base score of 4.3 (NVD).
How do I remediate CVE-2026-15656?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-15656, 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

Explore the affected products and dependency analysis for CVE-2026-15656

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