CVE-2026-15028Libarchive: heap overflow oob read while parsing a tar archive contains a pax extended header
- 3.9LowCVSS base score
- 0.20%Exploitation in 30 daysEPSS · top 90% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
A flaw was found in libarchive. This vulnerability allows a remote attacker to trigger a heap overflow by providing a specially crafted tar archive. The issue occurs during the parsing of a PAX extended header containing a malformed SUN.holesdata sparse-file attribute. Successful exploitation could lead to a denial of service, making the system unavailable, or potentially allow for arbitrary code execution, giving the attacker control over the affected system.
Timeline
ID reserved
By redhat
- 2 days later
· 2 days later
Published
- 4 months later
· 4 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| redhatCNA (assigner) | 3.1 | Low3.9 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L |
| NVDNVD · Awaiting Analysis | 3.1 | Low3.9 | CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:L |
- EPSS (exploitation in 30 days)
- 0.20% · top 90% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: total
The list uses the assigner's score when there is one, then CISA's, then NVD's: Low 3.9.
Affected products
Red Hat · Red Hat Enterprise Linux 10
- unaffected 0:3.7.7-11.el10_2 – < *
Red Hat · Red Hat Cost Management On-Premise 1
- unaffected 1791460851 – < *
Red Hat · Red Hat Hardened Images
- unaffected 3.8.8-2.1.hum1 – < *
Red Hat · Red Hat Enterprise Linux 6
All versions: unknown
Red Hat · Red Hat Enterprise Linux 7
All versions: unknown
Red Hat · Red Hat Enterprise Linux 8
All versions: unaffected
Red Hat · Red Hat Enterprise Linux 9
All versions: affected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unknown
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift AI (RHOAI)
All versions: unaffected
Red Hat · Red Hat OpenShift Container Platform 4
All versions: affected
Red Hat · Red Hat OpenShift Container Platform 5
All versions: affected
What to do
Workaround: To mitigate this issue, avoid processing untrusted or unverified tar archives. Users should exercise caution when handling archives from unknown sources or those with unexpected content, as processing a specially crafted archive could trigger the vulnerability.
References
References7
- RHSA-2026:38279 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:69553 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- RHSA-2026:79357 (opens in a new tab)vendor-advisoryx_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-15028 (opens in a new tab)vdb-entryx_refsource_REDHAT
- RHBZ#2497970 (opens in a new tab)issue-trackingx_refsource_REDHAT
- https://github.com/libarchive/libarchive/issues/3251 (opens in a new tab)
- https://github.com/libarchive/libarchive/pull/3253 (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-42865 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-15028)Record last updated .