CVE-2022-25891

CVE-2022-25891 is a high-severity vulnerability in Containrrr Shoutrrr 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.

Key facts

Description

The package github.com/containrrr/shoutrrr/pkg/util before 0.6.0 are vulnerable to Denial of Service (DoS) via the util.PartitionMessage function. Exploiting this vulnerability is possible by sending exactly 2000, 4000, or 6000 characters messages.

Frequently asked questions

What is CVE-2022-25891?
The package github.com/containrrr/shoutrrr/pkg/util before 0.6.0 are vulnerable to Denial of Service (DoS) via the util.PartitionMessage function. Exploiting this vulnerability is possible by sending exactly 2000, 4000, or 6000 characters messages.
How severe is CVE-2022-25891?
CVE-2022-25891 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-2022-25891 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 1% (66th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2022-25891?
CVE-2022-25891 affects Containrrr Shoutrrr. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2022-25891?
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-2022-25891 published?
CVE-2022-25891 was published on 2022-07-15 and last updated on 2026-06-17.

References

Affected products (1)