How severe is CVE-2025-46553?

CVE-2025-46553 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.

Is CVE-2025-46553 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2025-46553?

CVE-2025-46553 affects Misskey Summaly. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2025-46553?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

Does CVE-2025-46553 have an EU (EUVD) identifier?

Yes. CVE-2025-46553 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13413.

When was CVE-2025-46553 published?

CVE-2025-46553 was published on 2025-05-05 and last updated on 2026-06-17.

CVE-2025-46553

CVE-2025-46553 is a medium-severity vulnerability in Misskey Summaly with a CVSS 3.x base score of 6.1. 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-601.

Key facts

Severity: Medium (CVSS 3.x base score 6.1)
CVSS v4: 2.1
EPSS exploit prediction: 0% (12th percentile)
Actively exploited: Not listed in CISA KEV
EU (EUVD) id: EUVD-2025-13413
Weakness: CWE-601
Affected product: Misskey Summaly
Published: 2025-05-05
Last modified: 2026-06-17

Description

@misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main `summaly` function causes the `allowRedirects` option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects, despite explicitly requesting not to. Version 5.2.1 contains a patch for the issue.

Frequently asked questions

What is CVE-2025-46553?: @misskey-dev/summaly is a tool for getting a summary of a web page. Starting in version 3.0.1 and prior to version 5.2.1, a logic error in the main `summaly` function causes the `allowRedirects` option to never be passed to any plugins, and as a result, isn't enforced. Misskey will follow redirects, despite explicitly requesting not to. Version 5.2.1 contains a patch for the issue.
How severe is CVE-2025-46553?: CVE-2025-46553 has a CVSS 3.x base score of 6.1, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is low, integrity low, and availability none.
Is CVE-2025-46553 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (12th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2025-46553?: CVE-2025-46553 affects Misskey Summaly. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2025-46553?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
Does CVE-2025-46553 have an EU (EUVD) identifier?: Yes. CVE-2025-46553 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2025-13413.
When was CVE-2025-46553 published?: CVE-2025-46553 was published on 2025-05-05 and last updated on 2026-06-17.

References

Affected products (1)

cpe:2.3:a:misskey:summaly:*:*:*:*:*:node.js:*:*

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