CVE-2023-41885

MEDIUMNVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 5.3 under NVD CVSS v3. EPSS exploit probability: 0.4%, top 42% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
5.3
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS: 0%CVSS: 5.3Exploit: NoneExposed: 0

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

Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of BaseUser.login leaks enough information to a malicious user such that they would be able to successfully generate a list of valid users on the platform. As Piccolo on its own does not also enforce strong passwords, these lists of valid accounts are likely to be used in a password spray attack with the outcome being attempted takeover of user accounts on the platform. The impact of this vulnerability is minor as it requires chaining with other attack vectors in order to gain more then simply a list of valid users on the underlying platform. The likelihood of this vulnerability is possible as it requires minimal skills to pull off, especially given the underlying login functionality for Piccolo based sites is open source. This issue has been patched in version 0.121.0.

CVSS v3
5.3
EG Score
5.3(medium)
EPSS
36.8%
KEV
Not listed

Published

September 12, 2023

Last Modified

June 17, 2026

References (4)

Affected Packages

(1 across 1 ecosystem)
PyPI(1)
PackageVulnerable rangeFixed inDependents
piccolo0.1.0 ... 0.99.0 (240 versions)0.121.0—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 9× in last 7d / 47× 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. 2026-07-11 08:26 UTCEPSS rescore
  2. 2026-07-11 08:26 UTCEPSS rescore
  3. 2026-07-09 19:08 UTCEPSS rescore
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  19. 2026-06-27 10:34 UTCOSV refresh
  20. 2026-06-27 03:07 UTCEPSS rescore
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  22. 2026-06-25 13:48 UTCEPSS rescore
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  1. 2026-06-23 21:31 UTCEPSS rescore
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  9. 2026-06-19 19:24 UTCEPSS rescore
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  11. 2026-06-18 17:51 UTCEPSS rescore
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  18. 2026-06-14 23:16 UTCEPSS rescore
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  23. 2026-06-11 13:59 UTCEPSS rescore
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  25. 2026-06-10 22:17 UTCEPSS rescore
  26. 2026-06-10 13:21 UTCEPSS rescore
  27. 2026-06-10 13:21 UTCEPSS rescore
  28. 2026-06-09 20:47 UTCOSV refresh
  29. 2026-06-08 14:16 UTCEPSS rescore
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  31. 2026-06-07 15:23 UTCEPSS rescore
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  40. 2026-06-04 13:11 UTCEPSS rescore
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  44. 2026-06-01 13:51 UTCEPSS rescore
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  46. 2026-05-31 22:30 UTCEPSS rescore
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  48. 2026-05-31 00:15 UTCEPSS rescore
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  50. 2026-05-29 13:43 UTCEPSS rescore
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  52. 2026-05-28 13:44 UTCEPSS rescore
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  54. 2026-05-27 13:39 UTCEPSS rescore
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  56. 2026-05-26 13:43 UTCEPSS rescore
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  58. 2026-05-26 07:18 UTCEPSS rescore
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  60. 2026-05-26 07:18 UTCEPSS rescore
  61. 2026-05-24 17:39 UTCEG score recompute

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2023-41885?
CVE-2023-41885 is a medium vulnerability published on September 12, 2023. Piccolo is an ORM and query builder which supports asyncio. In versions 0.120.0 and prior, the implementation of BaseUser.login leaks enough information to a malicious user such that they would be able to successfully generate a list of valid users on the platform. As Piccolo on its own does not…
When was CVE-2023-41885 disclosed?
CVE-2023-41885 was first published in the National Vulnerability Database on September 12, 2023, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-41885 actively exploited?
CVE-2023-41885 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 36.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2023-41885?
CVE-2023-41885 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2023-41885?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-41885, 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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