CVE-2026-62943: digint btrbk · OS Command Injection
Affects digint btrbkSource CVE Database V5
Not known to be exploited · CVSS 8.7 High : upgrade to 0.32.7 soon.
Data as of 2 Nov 2026, 22:58 UTC
- EPSS
- 0.4% chance of exploitation in 30 days – higher than 42% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.32.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:NExploitation evidence
Disclosed: evidence found.
CVE published 18 Sep 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 2 Nov 2026.
What to do
Upgrade btrbk and digint/btrbk to 0.32.7.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| digintbtrbk | Affected
| Fixed in
|
GitHubdigint/btrbkpkg:github/digint/btrbkOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Upgrade btrbk to version 0.32.7 or later where this vulnerability is fixed. If upgrading is not immediately possible, avoid using ssh_filter_btrbk.sh in authorized_keys to restrict SSH commands, as deployments not using this script are not affected.
Description
CVE-2026-62943 is an OS command injection vulnerability in the digint btrbk tool affecting versions from 0.29.0 up to but not including 0.32.7. The vulnerability arises because the ssh_filter_btrbk.sh script uses an allowlist pattern that lacks an end-of-string anchor, allowing a restricted SSH user to append additional commands and execute arbitrary commands with backup-target SSH account privileges. Deployments not using ssh_filter_btrbk.sh in authorized_keys are not affected. This issue is fixed in version 0.32.7.