CVE-2026-61486

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreHIGH confidence

Score 9.8 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-05. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 9.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
9.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 9.8Exploit: None knownExposed: 0

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

UNSUPPORTED WHEN ASSIGNED Stack-based Buffer Overflow vulnerability in Apache Lucy.

This issue affects Apache Lucy: all versions.

As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to trusted users.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer.

CVSS v3
9.8
EG Score
9.8(high)
EG Risk
44(Track)
EG Risk 44/100SSVC: 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
Severity98% × 45%
Exploitation1% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
45%
KEV
Not listed

Published

August 5, 2026

Last Modified

August 6, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
No patch confirmed yet.
generic

oss-security - CVE-2026-61486: Apache Lucy: stack-buffer-overflow in JSON parser error reporter on malformed input

http://www.openwall.com/lists/oss-security/2026/08/05/7
generic
https://lists.apache.org/thread/z88yv1z19ppsd4td4nqtg7q72fvqh01b

Vendor Advisories for CVE-2026-61486(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 53× in last 7d / 130× 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 130 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-61486?
CVE-2026-61486 is a critical vulnerability published on August 5, 2026. UNSUPPORTED WHEN ASSIGNED Stack-based Buffer Overflow vulnerability in Apache Lucy. This issue affects Apache Lucy: all versions. As this project is retired, we do not plan to release a version that fixes this issue. Users are recommended to find an alternative or restrict access to the instance to…
When was CVE-2026-61486 disclosed?
CVE-2026-61486 was first published in the National Vulnerability Database on August 5, 2026, with the most recent update on August 6, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-61486 actively exploited?
CVE-2026-61486 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 55.4% of all scored CVEs.
What is the CVSS score of CVE-2026-61486?
CVE-2026-61486 has a CVSS v3.1 base score of 9.8 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-61486?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-61486, 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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