How severe is CVE-2026-32933?

CVE-2026-32933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.

Is CVE-2026-32933 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-32933?

CVE-2026-32933 affects Luckypennysoftware Automapper. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-32933?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.

Does CVE-2026-32933 have an EU (EUVD) identifier?

Yes. CVE-2026-32933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13505.

When was CVE-2026-32933 published?

CVE-2026-32933 was published on 2026-03-20 and last updated on 2026-06-17.

CVE-2026-32933

CVE-2026-32933 is a high-severity vulnerability in Luckypennysoftware Automapper with a CVSS 3.x base score of 7.5. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-674.

Key facts

Severity: High (CVSS 3.x base score 7.5)
EPSS exploit prediction: 1% (42nd percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-13505
Weakness: CWE-674
Affected product: Luckypennysoftware Automapper
Published: 2026-03-20
Last modified: 2026-06-17

Description

AutoMapper is a convention-based object-object mapper in .NET. Versions prior to 15.1.1 and 16.1.1 are vulnerable to a Denial of Service (DoS) attack. When mapping deeply nested object graphs, the library uses recursive method calls without enforcing a default maximum depth limit. This allows an attacker to provide a specially crafted object graph that exhausts the thread's stack memory, triggering a `StackOverflowException` and causing the entire application process to terminate. Versions 15.1.1 and 16.1.1 fix the issue.

Frequently asked questions

What is CVE-2026-32933?: AutoMapper is a convention-based object-object mapper in .NET. Versions prior to 15.1.1 and 16.1.1 are vulnerable to a Denial of Service (DoS) attack. When mapping deeply nested object graphs, the library uses recursive method calls without enforcing a default maximum depth limit. This allows an attacker to provide a specially crafted object graph that exhausts the thread's stack memory, triggering a `StackOverflowException` and causing the entire application process to terminate. Versions 15.1.1 and 16.1.1 fix the issue.
How severe is CVE-2026-32933?: CVE-2026-32933 has a CVSS 3.x base score of 7.5, rated high severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is none, integrity none, and availability high.
Is CVE-2026-32933 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (42nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-32933?: CVE-2026-32933 affects Luckypennysoftware Automapper. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-32933?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Given its high severity, prioritise patching exposed systems.
Does CVE-2026-32933 have an EU (EUVD) identifier?: Yes. CVE-2026-32933 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-13505.
When was CVE-2026-32933 published?: CVE-2026-32933 was published on 2026-03-20 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:luckypennysoftware:automapper:*:*:*:*:*:*:*:*

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