How severe is CVE-2026-33241?

CVE-2026-33241 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-2026-33241 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-33241?

CVE-2026-33241 affects Salvo. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-33241?

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-2026-33241 have an EU (EUVD) identifier?

Yes. CVE-2026-33241 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14638.

When was CVE-2026-33241 published?

CVE-2026-33241 was published on 2026-03-24 and last updated on 2026-06-17.

CVE-2026-33241

CVE-2026-33241 is a high-severity vulnerability in Salvo 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-770.

Key facts

Severity: High (CVSS 3.x base score 7.5)
CVSS v4: 8.7
EPSS exploit prediction: 0% (35th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2026-14638
Weakness: CWE-770
Affected product: Salvo
Published: 2026-03-24
Last modified: 2026-06-17

Description

Salvo is a Rust web framework. Prior to version 0.89.3, Salvo's form data parsing implementations (`form_data()` method and `Extractible` macro) do not enforce payload size limits before reading request bodies into memory. This allows attackers to cause Out-of-Memory (OOM) conditions by sending extremely large payloads, leading to service crashes and denial of service. Version 0.89.3 contains a patch.

Frequently asked questions

What is CVE-2026-33241?: Salvo is a Rust web framework. Prior to version 0.89.3, Salvo's form data parsing implementations (`form_data()` method and `Extractible` macro) do not enforce payload size limits before reading request bodies into memory. This allows attackers to cause Out-of-Memory (OOM) conditions by sending extremely large payloads, leading to service crashes and denial of service. Version 0.89.3 contains a patch.
How severe is CVE-2026-33241?: CVE-2026-33241 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-2026-33241 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (35th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-33241?: CVE-2026-33241 affects Salvo. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-33241?: 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-2026-33241 have an EU (EUVD) identifier?: Yes. CVE-2026-33241 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-14638.
When was CVE-2026-33241 published?: CVE-2026-33241 was published on 2026-03-24 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:salvo:salvo:*:*:*:*:*:rust:*:*

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