CVE-2026-73632

MEDIUMPre-NVD 4.34.3—
EchelonGraph scoreMEDIUM confidence

Score 4.3 from GitHub Security Advisory published 2026-08-15. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 4.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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.

Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the JSON interceptor is affected, which is not enabled by default; applications using the json result type are not affected.

This issue affects Apache Struts: 7.2.1.

Users are recommended to upgrade to version 7.3.0, which fixes the issue.

CVSS v3
4.3
EG Score
4.3(medium)
EG Risk
19(Track)
EG Risk 19/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
18%
KEV
Not listed

Published

August 15, 2026

Last Modified

August 18, 2026

Advisory Details (1)

Auto-updated Aug 17, 2026
No patch confirmed yet.
generic

S2-071 - Apache Struts 2 Wiki - Apache Software Foundation

https://cwiki.apache.org/confluence/display/WW/S2-071

Vendor Advisories for CVE-2026-73632(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 19× in last 7d / 74× 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. 2026-09-19 03:15 UTCEG score recompute
  2. 2026-09-19 03:15 UTCGHSA enrichment
  3. 2026-09-18 19:28 UTCEPSS rescore
  4. 2026-09-18 01:22 UTCEG score recompute
  5. 2026-09-18 01:22 UTCGHSA enrichment
  6. 2026-09-16 23:28 UTCEG score recompute
  7. 2026-09-16 23:28 UTCGHSA enrichment
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 05:15 UTCEPSS rescore
  10. 2026-09-15 15:19 UTCEG score recompute
  11. 2026-09-15 15:19 UTCGHSA enrichment
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-14 13:22 UTCEG score recompute
  14. 2026-09-14 13:22 UTCGHSA enrichment
  15. 2026-09-13 11:29 UTCEG score recompute
  16. 2026-09-13 11:29 UTCGHSA enrichment
  17. 2026-09-12 15:02 UTCEPSS rescore
  18. 2026-09-12 09:36 UTCEG score recompute
  19. 2026-09-12 09:36 UTCGHSA enrichment
  20. 2026-09-11 14:53 UTCEPSS rescore
  21. 2026-09-11 07:43 UTCEG score recompute
  22. 2026-09-11 07:42 UTCGHSA enrichment
  23. 2026-09-10 09:35 UTCEPSS rescore
  24. 2026-09-10 05:48 UTCGHSA enrichment
  25. 2026-09-09 03:55 UTCEG score recompute
Show 67 more
  1. 2026-09-09 03:54 UTCGHSA enrichment
  2. 2026-09-08 22:01 UTCEPSS rescore
  3. 2026-09-07 16:15 UTCEG score recompute
  4. 2026-09-07 16:15 UTCGHSA enrichment
  5. 2026-09-06 13:48 UTCEPSS rescore
  6. 2026-09-06 07:07 UTCEG score recompute
  7. 2026-09-06 07:06 UTCGHSA enrichment
  8. 2026-09-05 05:11 UTCEG score recompute
  9. 2026-09-05 05:11 UTCGHSA enrichment
  10. 2026-09-04 05:07 UTCEPSS rescore
  11. 2026-09-04 03:17 UTCGHSA enrichment
  12. 2026-09-03 01:24 UTCEG score recompute
  13. 2026-09-03 01:24 UTCGHSA enrichment
  14. 2026-09-02 14:12 UTCEPSS rescore
  15. 2026-09-01 23:08 UTCEG score recompute
  16. 2026-09-01 23:08 UTCGHSA enrichment
  17. 2026-09-01 13:54 UTCEPSS rescore
  18. 2026-09-01 04:40 UTCEPSS rescore
  19. 2026-09-01 04:40 UTCEPSS rescore
  20. 2026-08-31 21:14 UTCEG score recompute
  21. 2026-08-31 21:14 UTCGHSA enrichment
  22. 2026-08-30 19:18 UTCEPSS rescore
  23. 2026-08-30 19:17 UTCEPSS rescore
  24. 2026-08-30 16:38 UTCEG score recompute
  25. 2026-08-30 16:38 UTCGHSA enrichment
  26. 2026-08-30 01:22 UTCEPSS rescore
  27. 2026-08-29 14:44 UTCEG score recompute
  28. 2026-08-29 14:44 UTCGHSA enrichment
  29. 2026-08-28 21:42 UTCEPSS rescore
  30. 2026-08-28 11:07 UTCEG score recompute
  31. 2026-08-28 11:07 UTCGHSA enrichment
  32. 2026-08-27 14:25 UTCEPSS rescore
  33. 2026-08-27 09:13 UTCEG score recompute
  34. 2026-08-27 09:13 UTCGHSA enrichment
  35. 2026-08-26 14:47 UTCEPSS rescore
  36. 2026-08-26 07:20 UTCEG score recompute
  37. 2026-08-26 07:20 UTCGHSA enrichment
  38. 2026-08-25 13:49 UTCEPSS rescore
  39. 2026-08-25 05:25 UTCEG score recompute
  40. 2026-08-25 05:25 UTCGHSA enrichment
  41. 2026-08-24 03:32 UTCGHSA enrichment
  42. 2026-08-23 01:39 UTCEG score recompute
  43. 2026-08-23 01:38 UTCGHSA enrichment
  44. 2026-08-23 00:19 UTCEPSS rescore
  45. 2026-08-21 23:49 UTCEPSS rescore
  46. 2026-08-21 23:45 UTCEG score recompute
  47. 2026-08-21 23:44 UTCGHSA enrichment
  48. 2026-08-20 22:56 UTCEPSS rescore
  49. 2026-08-20 21:51 UTCGHSA enrichment
  50. 2026-08-19 19:58 UTCEG score recompute
  51. 2026-08-19 19:58 UTCGHSA enrichment
  52. 2026-08-19 17:04 UTCEPSS rescore
  53. 2026-08-18 18:04 UTCGHSA enrichment
  54. 2026-08-18 15:18 UTCEG score recompute
  55. 2026-08-18 15:18 UTCGHSA enrichment
  56. 2026-08-18 13:49 UTCEPSS rescore
  57. 2026-08-18 13:49 UTCEPSS rescore
  58. 2026-08-17 13:47 UTCEPSS rescore
  59. 2026-08-17 13:30 UTCGHSA enrichment
  60. 2026-08-17 12:56 UTCEG score recompute▲ 4.30
  61. 2026-08-17 12:56 UTCGHSA enrichment
  62. 2026-08-17 12:56 UTCMITRE cvelistV5CVSS v3 → 4.3 · severity → MEDIUM
  63. 2026-08-16 14:56 UTCEPSS rescore
  64. 2026-08-16 14:56 UTCEPSS rescore
  65. 2026-08-15 11:25 UTCNVD update
  66. 2026-08-15 10:48 UTCEG score recompute
  67. 2026-08-15 10:46 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73632?
CVE-2026-73632 is a medium vulnerability published on August 15, 2026. Exposure of data element to wrong session vulnerability in the JSON plugin of Apache Struts. Per-response serialization state could be shared across concurrent requests, allowing response content associated with one request to become observable in another. Only the SMD / JSON-RPC handling of the…
When was CVE-2026-73632 disclosed?
CVE-2026-73632 was first published in the National Vulnerability Database on August 15, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73632 actively exploited?
CVE-2026-73632 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 81.7% of all scored CVEs.
What is the CVSS score of CVE-2026-73632?
CVE-2026-73632 has a CVSS v3.1 base score of 4.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-73632?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73632, 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.

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