CVE-2026-68433
Detail
Received This CVE record has recently been published to the CVE List and has been included within the NVD dataset.
Description
In the Linux kernel, the following vulnerability has been resolved:
libceph: bound get_version reply decode to front len
handle_get_version_reply() uses msg->front_alloc_len as the decode
boundary for MON_GET_VERSION_REPLY. That is the size of the reused
reply buffer, not the number of bytes actually received.
A truncated reply can therefore pass ceph_decode_need() and decode the
second u64 from stale tail bytes left in the buffer by an earlier
message, causing an uninitialized memory read.
Use msg->front.iov_len as the receive-side decode boundary, matching
other libceph reply handlers and limiting decoding to the bytes that
were actually read from the wire.
Metrics
CVSS Version 4.0
CVSS Version 3.x
CVSS Version 2.0
NVD enrichment efforts reference publicly available information to associate
vector strings. CVSS information contributed by other sources is also
displayed.
CVSS 4.0 Severity and Vector Strings:
NVD assessment
not yet provided.
CVSS 3.x Severity and Vector Strings:
NVD assessment
not yet provided.
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
CVSS 2.0 Severity and Vector Strings:
NVD assessment
not yet provided.
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Change History
4 change records found show changes
CVE Modified by kernel.org
8/19/2026 1:20:50 PM
Action
Type
Old Value
New Value
Added
Reference
https://git.kernel.org/stable/c/1307028f082756bf453e1889aee9983d30643a4b
Added
Reference
https://git.kernel.org/stable/c/72a35070fcefa229b1b031aa7482ad3788e18f07
Added
Reference
https://git.kernel.org/stable/c/f6cbf6878f3a1503c872ba8f1e69a58ee68d8b2e
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"340e0386aa39da181015bee38f309018c335ce16","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d60de8253c85a02d0e6194b0735e7a562981a04c","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"4e7ebfaa0d14cf50e44041bfde38070d6dbc019f","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"0d934c934ec746d53fc7e4f53239792647bbae63","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Record truncated, showing 2048 of 2455 characters.
View Entire Change Record [{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"1307028f082756bf453e1889aee9983d30643a4b","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"f6cbf6878f3a1503c872ba8f1e69a58ee68d8b2e","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"72a35070fcefa229b1b031aa7482ad3788e18f07","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"340e0386aa39da181015bee38f309018c335ce16","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d60de8253c85a02d0e6194b0735e7a562981a04c","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"4e7ebfaa0d14cf50e44041bfde38070d6dbc019f","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"0d934c934ec746d53fc7e4f53239792647bbae63","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","versionType":"semver","status":"unaffected"},{"version":"5.10.265","lessThanOrEqual":"5.10.*","versionType":"semver","status":"unaffected"},{"version":"5.15.216","lessThanOrEqual":"5.15.*","versionType":"semver","status":"unaffected"},{"version":"6.1.183","lessThanOrEqual":"6.1.*","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver",
CVE Modified by kernel.org
8/17/2026 2:17:52 AM
Action
Type
Old Value
New Value
Changed
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"340e0386aa39da181015bee38f309018c335ce16","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d60de8253c85a02d0e6194b0735e7a562981a04c","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"4e7ebfaa0d14cf50e44041bfde38070d6dbc019f","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"0d934c934ec746d53fc7e4f53239792647bbae63","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"340e0386aa39da181015bee38f309018c335ce16","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d60de8253c85a02d0e6194b0735e7a562981a04c","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"4e7ebfaa0d14cf50e44041bfde38070d6dbc019f","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"0d934c934ec746d53fc7e4f53239792647bbae63","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
CVE Modified by kernel.org
8/13/2026 7:17:37 PM
Action
Type
Old Value
New Value
Added
CVSS V3.1
AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:H
New CVE Received from kernel.org
8/11/2026 8:17:43 PM
Action
Type
Old Value
New Value
Added
Description
In the Linux kernel, the following vulnerability has been resolved:
libceph: bound get_version reply decode to front len
handle_get_version_reply() uses msg->front_alloc_len as the decode
boundary for MON_GET_VERSION_REPLY. That is the size of the reused
reply buffer, not the number of bytes actually received.
A truncated reply can therefore pass ceph_decode_need() and decode the
second u64 from stale tail bytes left in the buffer by an earlier
message, causing an uninitialized memory read.
Use msg->front.iov_len as the receive-side decode boundary, matching
other libceph reply handlers and limiting decoding to the bytes that
were actually read from the wire.
Added
Reference
https://git.kernel.org/stable/c/0d934c934ec746d53fc7e4f53239792647bbae63
Added
Reference
https://git.kernel.org/stable/c/340e0386aa39da181015bee38f309018c335ce16
Added
Reference
https://git.kernel.org/stable/c/4e7ebfaa0d14cf50e44041bfde38070d6dbc019f
Added
Reference
https://git.kernel.org/stable/c/d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0
Added
Reference
https://git.kernel.org/stable/c/d60de8253c85a02d0e6194b0735e7a562981a04c
Added
Affected
[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"340e0386aa39da181015bee38f309018c335ce16","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d60de8253c85a02d0e6194b0735e7a562981a04c","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"4e7ebfaa0d14cf50e44041bfde38070d6dbc019f","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"0d934c934ec746d53fc7e4f53239792647bbae63","versionType":"git","status":"affected"},{"version":"513a8243d67f8e8d27f2883bd2f18bc87c7ca376","lessThan":"d3c32939fa0e3ee9b883b9a0fd1972c5c444e3d0","versionType":"git","status":"affected"}]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","programFiles":["net/ceph/mon_client.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","versions":[{"version":"3.16","status":"affected"},{"version":"0","lessThan":"3.16","versionType":"semver","status":"unaffected"},{"version":"6.6.148","lessThanOrEqual":"6.6.*","versionType":"semver","status":"unaffected"},{"version":"6.12.101","lessThanOrEqual":"6.12.*","versionType":"semver","status":"unaffected"},{"version":"6.18.42","lessThanOrEqual":"6.18.*","versionType":"semver","status":"unaffected"},{"version":"7.1.6","lessThanOrEqual":"7.1.*","versionType":"semver","status":"unaffected"},{"version":"7.2-rc5","lessThanOrEqual":"*","versionType":"original_commit_for_fix","status":"unaffected"}]}]
Quick Info
CVE Dictionary Entry: CVE-2026-68433 NVD
Published Date: 08/11/2026 NVD
Last Modified: 08/19/2026
Source: kernel.org
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