CVE-2026-39830 Affecting wal-g package, versions <3.0.8-r16
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published28 May 2026
- disclosed22 May 2026
Introduced: 22 May 2026
NewCVE-2026-39830 (opens in a new tab)How to fix?
Upgrade Wolfi wal-g to version 3.0.8-r16 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream wal-g package and not the wal-g package as distributed by Wolfi.
See How to fix? for Wolfi relevant fixed versions and status.
A malicious SSH peer could send unsolicited global request responses to fill an internal buffer, blocking the connection's read loop. The blocked goroutine could not be released by calling Close(), resulting in a resource leak per connection. Unsolicited global responses are now discarded.