CVE-2026-41035: Samba rsync · Improper Handling of Length Parameter Inconsistency
Affects Samba rsyncSource CVE Database V5
Not known to be exploited · CVSS 7.4 High.
Data as of 30 Oct 2026, 11:52 UTC
- EPSS
- 0.3% chance of exploitation in 30 days – higher than 33% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:LExploitation evidence
Disclosed: evidence found.
CVE published 16 Apr 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 30 Oct 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Sambarsync | Affected
| Fixed in– |
GitHubrsyncproject/rsyncpkg:github/rsyncproject/rsyncOther 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
Red Hat has released security updates addressing this vulnerability, including patched rsync packages for Red Hat Enterprise Linux 6 Extended Lifecycle Support. Users should apply these official updates to remediate the issue. Since the vulnerability requires running rsync with the -X option, avoiding use of this option can reduce exposure but is not a complete mitigation. Patch status is confirmed by vendor advisories; therefore, applying the vendor-provided updates is the recommended remediation.
Description
In rsync 3.0.1 through 3.4.1, receive_xattr relies on an untrusted length value during a qsort call, leading to a receiver use-after-free. The victim must run rsync with -X (aka --xattrs). On Linux, many (but not all) common configurations are vulnerable. Non-Linux platforms are more widely vulnerable.
References
- openwall.com/lists/oss-security/2026/04/16/2 (opens in a new tab)
- github.com/RsyncProject/rsync/releases (opens in a new tab)
- github.com/RsyncProject/rsync/issues/871 (opens in a new tab)
- openwall.com/lists/oss-security/2026/04/16/9 (opens in a new tab)
- openwall.com/lists/oss-security/2026/04/22/3 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-41035 (opens in a new tab)
- bugzilla.redhat.com/show_bug.cgi?id=2458898 (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-41035.json (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25173 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25172 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:26542 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:28887 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:23233 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25044 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:34098 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25181 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:23245 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20696 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19152 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20601 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20602 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20604 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:20603 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:19368 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:17481 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25170 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25190 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:25149 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:29197 (opens in a new tab)
- access.redhat.com/errata/RHSA-2026:59831 (opens in a new tab)