How severe is CVE-2023-48054?

CVE-2023-48054 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.

Is CVE-2023-48054 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2023-48054?

CVE-2023-48054 affects Localstack. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2023-48054?

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.

When was CVE-2023-48054 published?

CVE-2023-48054 was published on 2023-11-16 and last updated on 2026-06-17.

CVE-2023-48054

CVE-2023-48054 is a high-severity vulnerability in Localstack with a CVSS 3.x base score of 7.4. 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-295.

Key facts

Severity: High (CVSS 3.x base score 7.4)
EPSS exploit prediction: 0% (22nd percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-295
Affected product: Localstack
Published: 2023-11-16
Last modified: 2026-06-17

Description

Missing SSL certificate validation in localstack v2.3.2 allows attackers to eavesdrop on communications between the host and server via a man-in-the-middle attack.

Frequently asked questions

What is CVE-2023-48054?: Missing SSL certificate validation in localstack v2.3.2 allows attackers to eavesdrop on communications between the host and server via a man-in-the-middle attack.
How severe is CVE-2023-48054?: CVE-2023-48054 has a CVSS 3.x base score of 7.4, rated high severity. It is exploitable over network with high attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability none.
Is CVE-2023-48054 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (22nd percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2023-48054?: CVE-2023-48054 affects Localstack. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2023-48054?: 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.
When was CVE-2023-48054 published?: CVE-2023-48054 was published on 2023-11-16 and last updated on 2026-06-17.

References

https://gxx777.github.io/localstack_v_2.3.2_Cryptographic_API_Misuse_Vulnerability.md

Affected products (1)

cpe:2.3:a:localstack:localstack:2.3.2:*:*:*:*:*:*:*

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