CVE-2026-18852

LOWPre-NVD 3.33.3—
EchelonGraph scoreMEDIUM confidence

Score 3.3 from GitHub Security Advisory (severity: LOW) published 2026-08-05. A secondary CVSS source baseline 3.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.2%CVSS: 3.3Exploit: Elevated riskExposed services: Not assessed

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

A vulnerability has been found in epsilla-cloud vectordb up to 0.3.18/df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a. This impacts the function SplitTokens/ShuntingYard of the file engine/query/expr/expr.cpp of the component Filter Parser. Such manipulation leads to improper check for unusual conditions. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVSS v3
3.3
EG Score
3.3LOWmedium confidence
EG Risk
31
EG Risk 31/100CISA 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
Severity33% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.
EPSS PROB
0.2%
EPSS %ILE
4th
KEV
Not listed

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

No fix is confirmed yet. Restrict network exposure of the affected system or apply the vendor's mitigation within your standard update timelines, and watch the vendor's advisory for the fix.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (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 4, 2026

Last Modified

August 12, 2026

References (6)

Vendor Advisories for CVE-2026-18852(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 7× in last 7d / 35× 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. 2026-10-04 23:21 UTCEPSS rescore
  2. 2026-10-04 06:08 UTCEG score recompute
  3. 2026-10-04 06:08 UTCGHSA enrichment
  4. 2026-10-01 19:49 UTCEPSS rescore
  5. 2026-10-01 02:53 UTCEG score recompute
  6. 2026-10-01 02:53 UTCGHSA enrichment
  7. 2026-09-30 15:02 UTCEPSS rescore
  8. 2026-09-28 13:51 UTCEPSS rescore
  9. 2026-09-28 03:51 UTCEG score recompute
  10. 2026-09-28 03:51 UTCGHSA enrichment
  11. 2026-09-26 15:58 UTCEPSS rescore
  12. 2026-09-25 04:40 UTCEG score recompute
  13. 2026-09-25 04:40 UTCGHSA enrichment
  14. 2026-09-22 03:01 UTCEG score recompute
  15. 2026-09-22 03:01 UTCGHSA enrichment
  16. 2026-09-18 19:27 UTCEPSS rescore
  17. 2026-09-18 05:57 UTCEG score recompute
  18. 2026-09-18 05:57 UTCGHSA enrichment
  19. 2026-09-16 14:07 UTCEPSS rescore
  20. 2026-09-16 05:14 UTCEPSS rescore
  21. 2026-09-15 06:53 UTCEG score recompute
  22. 2026-09-15 06:53 UTCGHSA enrichment
  23. 2026-09-13 16:46 UTCEPSS rescore
  24. 2026-09-12 15:00 UTCEPSS rescore
  25. 2026-09-12 05:36 UTCEG score recompute
Show 64 more
  1. 2026-09-12 05:36 UTCGHSA enrichment
  2. 2026-09-11 14:52 UTCEPSS rescore
  3. 2026-09-11 09:36 UTCEPSS rescore
  4. 2026-09-10 09:34 UTCEPSS rescore
  5. 2026-09-09 06:34 UTCEG score recompute
  6. 2026-09-09 06:34 UTCGHSA enrichment
  7. 2026-09-08 22:00 UTCEPSS rescore
  8. 2026-09-06 13:47 UTCEPSS rescore
  9. 2026-09-06 06:25 UTCEG score recompute
  10. 2026-09-06 06:25 UTCGHSA enrichment
  11. 2026-09-04 05:06 UTCEPSS rescore
  12. 2026-09-03 07:18 UTCEG score recompute
  13. 2026-09-03 07:17 UTCGHSA enrichment
  14. 2026-09-02 14:11 UTCEPSS rescore
  15. 2026-09-01 13:53 UTCEPSS rescore
  16. 2026-09-01 04:39 UTCEPSS rescore
  17. 2026-08-30 19:17 UTCEPSS rescore
  18. 2026-08-30 18:58 UTCEG score recompute
  19. 2026-08-30 18:58 UTCGHSA enrichment
  20. 2026-08-30 01:22 UTCEPSS rescore
  21. 2026-08-28 21:41 UTCEPSS rescore
  22. 2026-08-27 19:56 UTCEG score recompute
  23. 2026-08-27 19:56 UTCGHSA enrichment
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-26 14:46 UTCEPSS rescore
  26. 2026-08-25 13:48 UTCEPSS rescore
  27. 2026-08-24 17:41 UTCEG score recompute
  28. 2026-08-24 17:41 UTCGHSA enrichment
  29. 2026-08-23 00:19 UTCEPSS rescore
  30. 2026-08-21 18:14 UTCEG score recompute
  31. 2026-08-21 18:14 UTCGHSA enrichment
  32. 2026-08-20 22:55 UTCEPSS rescore
  33. 2026-08-19 17:03 UTCEPSS rescore
  34. 2026-08-18 19:12 UTCEG score recompute
  35. 2026-08-18 19:12 UTCGHSA enrichment
  36. 2026-08-18 13:48 UTCEPSS rescore
  37. 2026-08-16 14:56 UTCEPSS rescore
  38. 2026-08-16 02:14 UTCEPSS rescore
  39. 2026-08-15 20:10 UTCEG score recompute
  40. 2026-08-15 20:10 UTCGHSA enrichment
  41. 2026-08-15 01:30 UTCEPSS rescore
  42. 2026-08-13 22:00 UTCEPSS rescore
  43. 2026-08-12 21:08 UTCEG score recompute
  44. 2026-08-12 21:08 UTCGHSA enrichment
  45. 2026-08-12 13:50 UTCEPSS rescore
  46. 2026-08-11 13:31 UTCEG score recompute
  47. 2026-08-11 13:31 UTCGHSA enrichment
  48. 2026-08-11 00:00 UTCEPSS rescore
  49. 2026-08-09 13:46 UTCEPSS rescore
  50. 2026-08-08 16:37 UTCEPSS rescore
  51. 2026-08-08 14:30 UTCEG score recompute
  52. 2026-08-08 14:30 UTCGHSA enrichment
  53. 2026-08-06 13:46 UTCEPSS rescore
  54. 2026-08-05 19:17 UTCEPSS rescore
  55. 2026-08-05 15:28 UTCEG score recompute
  56. 2026-08-05 15:28 UTCGHSA enrichment
  57. 2026-08-05 15:26 UTCNVD updateCVSS v4 → 1.9
  58. 2026-08-05 14:37 UTCEG score recompute
  59. 2026-08-05 14:37 UTCGHSA enrichment
  60. 2026-08-05 14:35 UTCMITRE cvelistV5CVSS v4 → 4.8
  61. 2026-08-05 00:20 UTCEG score recompute
  62. 2026-08-05 00:18 UTCNVD updateCVSS v4 → 1.9
  63. 2026-08-04 23:21 UTCEG score recompute
  64. 2026-08-04 23:20 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-18852?
CVE-2026-18852 is a low vulnerability published on August 4, 2026. A vulnerability has been found in epsilla-cloud vectordb up to 0.3.18/df5a5f5afb85a2376a0f2f316c79dea9b2c6ac7a. This impacts the function SplitTokens/ShuntingYard of the file engine/query/expr/expr.cpp of the component Filter Parser. Such manipulation leads to improper check for unusual conditions.…
When was CVE-2026-18852 disclosed?
CVE-2026-18852 was first published on August 4, 2026, with the most recent update on August 12, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18852 actively exploited?
CVE-2026-18852 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.2% probability of exploitation in the next 30 days (4th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-18852?
CVE-2026-18852 has a CVSS base score of 3.3 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-18852?
No fix for CVE-2026-18852 is confirmed yet. Until one is published, restrict network exposure of the affected system or apply the vendor's mitigation — for example, keep it off the internet or limit it to trusted networks — and watch the vendor's advisory for the fix. The vendor advisories EchelonGraph has for CVE-2026-18852 are linked in the Vendor Advisories panel on this page.

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