CVE-2022-26850 Insufficiently protected credentials

What is CVE-2022-26850?

CVE-2022-26850 is a medium-severity vulnerability in Apache Nifi, published on 6 Apr 2022. Any signed-in user can exploit it over the network, with no action from the victim.

Official description

When creating or updating credentials for single-user access, Apache NiFi wrote a copy of the Login Identity Providers configuration to the operating system temporary directory. On most platforms, the operating system temporary directory has global read permissions. NiFi immediately moved the temporary file to the final configuration directory, which significantly limited the window of opportunity for access. NiFi 1.16.0 includes updates to replace the Login Identity Providers configuration without writing a file to the operating system temporary directory.

Weakness: CWE-668

Which versions are affected by CVE-2022-26850?

3 open source packages ship an affected version, including org.apache.nifi:nifi-single-user-utils and nifi. It affects 1 product.

Products include Apache Nifi.

How do I fix CVE-2022-26850?

Upgrade org.apache.nifi:nifi-single-user-utils to 1.16 or later.

Is CVE-2022-26850 being exploited?

There is no known exploitation of CVE-2022-26850 in the wild and no public exploit code.

Other vulnerabilities in Apache Nifi

• CVE-2018-1309 Improper Restriction of XML External Entity Reference in Apache NiFi Critical 9.8
• CVE-2017-15697 Apache NiFi XSS issue in context path handling Critical 9.8
• CVE-2017-5636 Injection in Apache NiFi Critical 9.8
• CVE-2026-68981 Apache NiFi: Uncontrolled Resource Consumption through Decompression of HTTP Requests High 8.8
• CVE-2023-36542 Apache NiFi: Potential Code Injection with Properties Referencing Remote Resources High 8.8

All Apache Nifi vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BIT-nifi-2022-26850, GHSA-rvp4-r3g6-8hxq.