CVE-2026-61486

CRITICALPre-NVD 9.89.8—
EchelonGraph scoreMEDIUM 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: 0.8%CVSS: 9.8Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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.

Lucy is now maintained outside of the ASF at https://github.com/lucysearch . This issue has been fixed in 0.8.0 there.

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

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

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%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.8%
EPSS %ILE
55th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 5, 2026

Last Modified

September 4, 2026

Advisory Details (2)

Auto-updated Oct 2, 2026
Fix named in the CVE record.
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

Pony Mail

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 23× in last 7d / 137× 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 356 total refreshes for this CVE.

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

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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 on August 5, 2026, with the most recent update on September 4, 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 0.8% probability of exploitation in the next 30 days (55th percentile of EPSS-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?
A fix for CVE-2026-61486 is available — its CVE record says: "This issue has been fixed in 0.8.0 there." The vendor advisories EchelonGraph has for CVE-2026-61486 are linked in the Vendor Advisories panel on this page.

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