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Vulnerability record · CVE-2026-46452 · published 24 July 2026

CVE-2026-46452: Apache nimble improper input validation vulnerability

Apache · Nimble

Improper Input Validation vulnerability in Apache NimBLE in Mesh Proxy SAR reassembly could result in passing broken data toward application resulting in memory pressure and unstable parsing behavior. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

5.3 CVSS 3.1 Medium EPSS 0.91% · top 41.7% CWE-20 · Improper input validation
5.3CVSS 3.1 base score
0.91%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
3References
27 Jul 2026Last modified by NVD

Description

Improper Input Validation vulnerability in Apache NimBLE in Mesh Proxy SAR reassembly could result in passing broken data toward application resulting in memory pressure and unstable parsing behavior. This issue affects Apache NimBLE: through 1.9.0. Users are recommended to upgrade to version 1.10.0, which fixes the issue.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://github.com/apache/mynewt-nimble/commit/593f95227a4073efde840a9bb34614929dfa7ed1 Patch
https://lists.apache.org/thread/ym80ogxj3398khvxxogxroz4gvgw3ssg Mailing ListVendor AdvisoryPatch
http://www.openwall.com/lists/oss-security/2026/07/24/16 Mailing ListThird Party Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-46452), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.