CVE-2026-32884Disclosure(botan_project / botan)

LOWCVSS 5.9 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD description

Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowable DNS names, if no subject alternative name is defined in the end-entity certificate Botan would check that the CN was allowed by the DNS name constraints, even though this check is technically not required by RFC 5280. However this check failed to account for the possibility of a mixed-case CN. Thus a certificate with CN=Sub.EVIL.COM and no subject alternative name would bypasses an excludedSubtrees constraint for evil.com because the comparison is case-sensitive. This issue has been patched in version 3.11.0.

botan_project CVEs Back to dashboard

0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories

https://github.com/randombit/botan/security/advisories/GHSA-7c3g-7763-ggj5

Weakness type (CWE)

CWE-295

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

STABLE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

botan

Threat summary

2 mentions across 2 observed days
Momentum state: stable

What's happening

Technical details provided in 2 signals
Disclosure: 2 classified signals
Peaked 1d ago at 1 mentions (2026-03-30); latest day: 1
2 total mentions across 2 days

Affected systems

Vendors

botan_project

Products

botan

Deep dive

Activity timeline2 mentions / 2d

Signal classification1 categories

Disclosure

2100.0%

Referenced assets2 URLs

By indicator

Full discourse2 posts

CVE@CVEnew193d
Disclosure
CVE-2026-32884 Botan is a C++ cryptography library. Prior to version 3.11.0, during processing of an X.509 certificate path using name constraints which restrict the set of allowabl… https://www.cve.org/CVERecord?id=CVE-2026-32884
Post summary
The post briefly describes CVE-2026-32884 affecting Botan before version 3.11.0 during X.509 certificate path processing using name constraints, with no evidence of PoC, active exploitation, patching, or debunking.
00010116
56.9K followersView on X
CyberDudeBivash® | Global Cybersecurity Company@cyberbivash194d
Disclosure
🚨 CYBERDUDEBIVASH SENTINEL APEX ALERT 🚨 Threat: CVE-2026-32884 - Botan: Case-Insensitive CN Values Bypass DNS excludedSubtrees Name Constraints (RFC 5280 Violation) Intel Report: https://ift.tt/5yIHklh
Post summary
The alert announces CVE-2026-32884, a Botan library flaw allowing case‑insensitive CN bypass of DNS excludedSubtrees name constraints. Technical details are provided, but there is no PoC, exploit code, patch, or evidence of active exploitation.
0000052
280 followersView on X

CPE platform detail1 entries

Part:

Vendor:

Product:

Version:

Target SW:

Target HW:

1 of 1 entries

Part	Vendor	Product	Version	Target SW	Target HW
App	botan_project	botan	-	-	-

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