CVE-2026-18477
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2026
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
Tar: tar: toctou in incremental dumpdir 'x' rename handling allows restore path escape
A TOCTOU (Time-of-Check Time-of-Use) vulnerability in GNU tar's incremental dumpdir 'X' rename handling allows a local attacker with write access to a directory being backed up to influence the restore process if the attacker has access to the system where the restore is being performed. During restoration, files or directories may be created, renamed or overwritten outside the intended extraction directory. This could lead to unauthorized file modification or, in some cases, privilege escalation. Exploitation does not require the attacker to modify or craft the archive, and standard backup and restore workflows—including extracting into a newly created directory without using the -P option do not mitigate the issue.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Red Hat Enterprise Linux 10
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 10
- Platforms
- Unknown
- Default status
affected- Package
- tar
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2:1.35-13.el10_2 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Enterprise Linux 8
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 8
- Platforms
- Unknown
- Default status
affected- Package
- tar
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2:1.30-13.el8_10 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Enterprise Linux 9
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 9
- Platforms
- Unknown
- Default status
affected- Package
- tar
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 2:1.34-13.el9_8 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Discovery 2
- Vendor
- Red Hat
- Product
- Red Hat Discovery 2
- Platforms
- Unknown
- Default status
affected- Package
- discovery/discovery-server-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788205779 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
affected- Package
- tar-main
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1.35-9.1.hum1 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Update Infrastructure 5
- Vendor
- Red Hat
- Product
- Red Hat Update Infrastructure 5
- Platforms
- Unknown
- Default status
affected- Package
- rhui5/cds-kubernetes-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788880445 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Update Infrastructure 5
- Vendor
- Red Hat
- Product
- Red Hat Update Infrastructure 5
- Platforms
- Unknown
- Default status
affected- Package
- rhui5/cds-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788880464 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Update Infrastructure 5
- Vendor
- Red Hat
- Product
- Red Hat Update Infrastructure 5
- Platforms
- Unknown
- Default status
affected- Package
- rhui5/haproxy-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788880456 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Update Infrastructure 5
- Vendor
- Red Hat
- Product
- Red Hat Update Infrastructure 5
- Platforms
- Unknown
- Default status
affected- Package
- rhui5/installer-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788765051 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Update Infrastructure 5
- Vendor
- Red Hat
- Product
- Red Hat Update Infrastructure 5
- Platforms
- Unknown
- Default status
affected- Package
- rhui5/rhua-rhel9
- Package collection
- https://catalog.redhat.com/software/containers/
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 1788880581 | unaffected | rpm | * | Unavailable | None listed |
Red Hat Enterprise Linux 6
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 6
- Platforms
- Unknown
- Default status
unknown- Package
- tar
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Enterprise Linux 7
- Vendor
- Red Hat
- Product
- Red Hat Enterprise Linux 7
- Platforms
- Unknown
- Default status
unknown- Package
- tar
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- aardvark-dns
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- chunkah
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- grafana12.4
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- grafana13.1
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- netavark
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- nodejs26
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- python-cryptography
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- rust
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- rust-rpm-sequoia
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat Hardened Images
- Vendor
- Red Hat
- Product
- Red Hat Hardened Images
- Platforms
- Unknown
- Default status
unaffected- Package
- yarnpkg
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat OpenShift Container Platform 4
- Vendor
- Red Hat
- Product
- Red Hat OpenShift Container Platform 4
- Platforms
- Unknown
- Default status
affected- Package
- openshift/ose-rhel-coreos-8
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.
Red Hat OpenShift Container Platform 4
- Vendor
- Red Hat
- Product
- Red Hat OpenShift Container Platform 4
- Platforms
- Unknown
- Default status
affected- Package
- openshift/ose-rhel-coreos-9
- Package collection
- https://access.redhat.com/downloads/content/package-browser/
No explicit version tuples; consult this entry's default status.