CVE-2026-107446: containerd overlaybd Integer Overflow or Wraparound

Awaiting analysis

Published 08-10-2026Last modified 08-10-2026

Vulnerability summary

CVE-2026-107446 is a medium (CVSS 6.8) Integer Overflow or Wraparound vulnerability in containerd overlaybd. EPSS estimates a 0.41% chance of exploitation in the next 30 days, higher than 35% of scored vulnerabilities.

Priority

Routine

Not severe (CVSS 6.8, network access); no exploitation reported by the 5 checked sources

Source freshness unavailable

How is this decided?

CVSS score

6.8/10

010

Medium · v3.1 (CVE.org)

EPSS score

0.41%

0%100%

Low · Change unavailable

KEVNot listedNot listed by any tracked catalog.

RansomwareNot flaggedNo ransomware use recorded.

Public exploits0No public exploits recorded

Timeline

08-10-2026
PublishedVulnerability first disclosed.
08-10-2026
Last modifiedVulnerability information updated.

Description

containerd overlaybd through 1.0.18 has a do_load_index (LSMT index loading) integer overflow (and resultant out-of-bounds heap access) for index_bytes, if an untrusted overlaybd blob from a registry is used in a scenario with multiple overlaybd-backed containers.

CVSS metrics

2 scores · 2 sources · 1 version

v3.16.8

EPSS trend

Probability

0.41%

Chance of exploitation in the next 30 days

Percentile

35%

Versus all other CVEs

30-day change

Change unavailable

08-10-202603-11-2026

Known exploited

Compare KEV catalogs

CISA KEV

Not in the CISA KEV catalog.

ENISA CNW

Not in the ENISA CNW catalog.

CIRCL

Not in the CIRCL catalog.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

CWE-190Integer Overflow or WraparoundThe product performs a calculation that can produce an integer overflow or wraparound when the logic assumes that the resulting value will always be larger than the original value. This occurs when an integer value is incremented to a value that is too large to store in the associated representation. When this occurs, the value may become a very small or negative number.

Affected systems

Version check

Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.

Containerd1 product

overlaybd≤ 1.0.18

1 vendor · 1 product

References

5 links