CVE-2022-26652
CVE-2022-26652 is a medium-severity vulnerability in Linuxfoundation Nats-server with a CVSS 3.x base score of 6.5. 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-22.
Key facts
- Severity: Medium (CVSS 3.x base score 6.5)
- CVSS v2: 4.0
- EPSS exploit prediction: 2% (82nd percentile)
- Actively exploited: Not listed in CISA KEV
- Weakness: CWE-22
- Affected product: Linuxfoundation Nats-server
- Published:
- Last modified:
Description
NATS nats-server before 2.7.4 allows Directory Traversal (with write access) via an element in a ZIP archive for JetStream streams. nats-streaming-server before 0.24.3 is also affected.
Frequently asked questions
- What is CVE-2022-26652?
- NATS nats-server before 2.7.4 allows Directory Traversal (with write access) via an element in a ZIP archive for JetStream streams. nats-streaming-server before 0.24.3 is also affected.
- How severe is CVE-2022-26652?
- CVE-2022-26652 has a CVSS 3.x base score of 6.5, rated medium severity. It is exploitable over network with low attack complexity, requires low privileges and no user interaction. Impact on confidentiality is none, integrity high, and availability none.
- Is CVE-2022-26652 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 2% (82nd percentile), an estimate of the probability of exploitation in the next 30 days.
- What products are affected by CVE-2022-26652?
- CVE-2022-26652 primarily affects Linuxfoundation Nats-server. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.
- How do I fix CVE-2022-26652?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- When was CVE-2022-26652 published?
- CVE-2022-26652 was published on 2022-03-10 and last updated on 2026-06-17.
References
- http://www.openwall.com/lists/oss-security/2022/03/10/1
- https://advisories.nats.io/CVE/CVE-2022-26652.txt
- https://github.com/nats-io/nats-server/releases
- https://github.com/nats-io/nats-server/security/advisories/GHSA-6h3m-36w8-hv68
Affected products (2)
- cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*
- cpe:2.3:a:nats:nats_streaming_server:*:*:*:*:*:*:*:*
More vulnerabilities in Linuxfoundation Nats-server
- CVE-2022-28357 — Critical (CVSS 9.8): NATS nats-server 2.2.0 through 2.7.4 allows directory traversal because of an unintended path to a management action…
- CVE-2020-26892 — Critical (CVSS 9.8): The JWT library in NATS nats-server before 2.1.9 has Incorrect Access Control because of how expired credentials are…
- CVE-2026-58253 — High (CVSS 8.8): NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0,…
- CVE-2022-24450 — High (CVSS 8.8): NATS nats-server before 2.7.2 has Incorrect Access Control. Any authenticated user can obtain the privileges of the…
- CVE-2026-33216 — High (CVSS 8.6): NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions…
- CVE-2026-58207 — High (CVSS 7.7): NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and…
All CVEs affecting Linuxfoundation Nats-server →
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