VulnerabilityPublished 23 Oct 2026

CVE-2026-98966: Linux kernel · bonding: fix the program leak when XDP is replaced

Affects Linux kernelSource CVE Database V5

Not known to be exploited : upgrade to bba6b1b086f9f4ddbfdaba7ea6279dc3abec70c7 or 184b5ddf82d45d6f75cc83719a2e453392512bd2 when convenient.

Data as of 26 Oct 2026, 13:07 UTC

Severity

Unrated

Rated by Threat Radar · CVSS not yet scored by NVD

EPSS: 0.1% chance of exploitation in 30 days – higher than 4% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch: Available – fixed in bba6b1b086f9f4ddbfdaba7ea6279dc3abec70c7, 184b5ddf82d45d6f75cc83719a2e453392512bd2

Exploitation evidence

Disclosed: evidence found.
CVE published 23 Oct 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: 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 26 Oct 2026.

Disclosed: The CVE record is public on cve.org. Its publication is t = 0.
Detectable: A public nuclei template can find exposed instances, for defenders and attackers alike.
Weaponised: Public exploit code exists in Metasploit or Exploit-DB, or CISA SSVC or the CVSS exploit maturity reports a public proof of concept.
Exploited in the wild: CISA KEV lists it, CISA SSVC rates exploitation active, or a source reports attacks.
Observed by OffSeq Mirage: OffSeq Mirage honeypot sensors recorded attack traffic for this CVE, or found exposed hosts without attack traffic.

Moments are spaced evenly, not to scale; a dashed line marks a gap of six months or more. Deltas count from t = 0. Sources that give only a date (CISA KEV, Exploit-DB, or a time of exactly 00:00Z) read “same day” rather than hours. Metasploit modules carry the flaw’s disclosure date, not their release date, and nuclei templates carry no date, so both appear above but not on the timeline.

What to do

Upgrade Linux kernel to bba6b1b086f9f4ddbfdaba7ea6279dc3abec70c7 or 184b5ddf82d45d6f75cc83719a2e453392512bd2.

Affected software

Product	Affected	Fixed in
LinuxLinux	Affected ≥ 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e, < bba6b1b086f9f4ddbfdaba7ea6279dc3abec70c7	Fixed in bba6b1b086f9f4ddbfdaba7ea6279dc3abec70c7
LinuxLinux	Affected ≥ 9e2ee5c7e7c35d195e2aa0692a7241d47a433d1e, < 184b5ddf82d45d6f75cc83719a2e453392512bd2	Fixed in 184b5ddf82d45d6f75cc83719a2e453392512bd2
LinuxLinux	Affected =5.15	Fixed in–

Description

In the Linux kernel, the following vulnerability has been resolved: bonding: fix the program leak when XDP is replaced We need to release the reference on the old BPF prog, whether we are going to no-prog, or replacing the prog with another. Spotted by AI while running tests for the propagation series (leaked programs were accumulating). Selftest will come in the net-next series to avoid conflicts.

References

Community reviews

Loading reviews…