synced 14 MIN AGO
01 Record

CVE-2026-48864

Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

HighPUBLISHEDCNA: redhat
CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
View raw JSON

02 Description

Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

03 Exploitation and scoring

Exploitation
Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.
SSVC decision
  • ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
  • AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
  • Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.
CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.
EPSS probability
0.22% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 13.2% of scored records. A rank, not a probability.
NVD base score
7.8 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
NVD analysis status
Modified. NVD last modified this record on 2026-10-14.
Red Hat severity
Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2026-05-26 16:16Z5 MO AGO
Last updated
2026-10-14 19:28Z14 DAYS AGO
Reserved
2026-05-25
Assigning CNA
redhat
Record state
PUBLISHED
Severity
High (CVSS 7.8)
CNA CVSS vector
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
Weaknesses
Data version
5.2
Document digest
cd0efdc3eeaf5c8b7e94757ee2a55ef83521d58c474ef37680b5864684eb85b3

05 Affected products

VendorProductVersionsPlatforms
Red HatRed Hat Enterprise Linux 10Not specified—
Red HatRed Hat Enterprise Linux 10.0 Extended Update SupportNot specified—
Red HatRed Hat Enterprise Linux 7 Extended Lifecycle SupportNot specified—
Red HatRed Hat Enterprise Linux 8Not specified—
Red HatRed Hat Enterprise Linux 8.4 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.4 Extended Update Support Long-Life Add-OnNot specified—
Red HatRed Hat Enterprise Linux 8.6 Advanced Mission Critical Update SupportNot specified—
Red HatRed Hat Enterprise Linux 8.6 Extended Update Support Long-Life Add-OnNot specified—
Red HatRed Hat Enterprise Linux 8.8 Telecommunications Update ServiceNot specified—
Red HatRed Hat Enterprise Linux 8.8 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9Not specified—
Red HatRed Hat Enterprise Linux 9.2 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9.4 Update Services for SAP SolutionsNot specified—
Red HatRed Hat Enterprise Linux 9.6 Extended Update SupportNot specified—
Red HatRed Hat OpenShift Container Platform 4.12Not specified—
Red HatRed Hat OpenShift Container Platform 4.13Not specified—
Red HatRed Hat OpenShift Container Platform 4.14Not specified—
Red HatRed Hat OpenShift Container Platform 4.15Not specified—
Red HatRed Hat OpenShift Container Platform 4.16Not specified—
Red HatRed Hat OpenShift Container Platform 4.17Not specified—
Red HatRed Hat OpenShift Container Platform 4.18Not specified—
Red HatRed Hat OpenShift Container Platform 4.19Not specified—
Red HatRed Hat Satellite 6.16 for RHEL 8Not specified—
Red HatCert Manager support for Red Hat OpenShift release 1.17Not specified—
Red HatCert Manager support for Red Hat OpenShift release 1.18Not specified—
Red HatCert Manager support for Red Hat OpenShift release 1.20Not specified—
Red HatRed Hat Discovery 2Not specified—
Red HatRed Hat Hardened ImagesNot specified—
Red HatRed Hat Insights proxy 1.5Not specified—
Red HatRed Hat OpenShift AI 3.0Not specified—
Red HatRed Hat OpenShift AI 3.2Not specified—
Red HatRed Hat OpenShift AI 3.4Not specified—
Red HatRed Hat Update Infrastructure 5Not specified—
Red HatRed Hat Update Infrastructure 4 for Cloud ProvidersNot specified—

06 References

07 Fixed in

AlmaLinux 8

  • libsolv
    Fixed in 0.7.20-7.el8_10
  • libsolv-devel
    Fixed in 0.7.20-7.el8_10
  • libsolv-tools
    Fixed in 0.7.20-7.el8_10
  • python3-solv
    Fixed in 0.7.20-7.el8_10

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 9

  • libsolv
    Fixed in 0.7.24-6.el9_8
  • libsolv-devel
    Fixed in 0.7.24-6.el9_8
  • libsolv-tools
    Fixed in 0.7.24-6.el9_8
  • python3-solv
    Fixed in 0.7.24-6.el9_8

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

AlmaLinux 10

  • libsolv
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-devel
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-tools
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-tools-base
    Fixed in 0.7.33-5.el10_2.alma.1
  • python3-solv
    Fixed in 0.7.33-5.el10_2.alma.1

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 8

  • libsolv
    Fixed in 0.7.20-7.el8_10
  • libsolv-devel
    Fixed in 0.7.20-7.el8_10
  • libsolv-tools
    Fixed in 0.7.20-7.el8_10
  • python3-solv
    Fixed in 0.7.20-7.el8_10

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 9

  • libsolv
    Fixed in 0.7.24-6.el9_8
  • libsolv-devel
    Fixed in 0.7.24-6.el9_8
  • libsolv-tools
    Fixed in 0.7.24-6.el9_8
  • python3-solv
    Fixed in 0.7.24-6.el9_8

Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

CloudLinux 10

  • libsolv
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-devel
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-tools
    Fixed in 0.7.33-5.el10_2.alma.1
  • libsolv-tools-base
    Fixed in 0.7.33-5.el10_2.alma.1
  • python3-solv
    Fixed in 0.7.33-5.el10_2.alma.1

Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • libsolv
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libsolv
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libsolv
    No fix yet

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 22.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 24.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 25.10

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 26.10

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 16.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu Pro 18.04 LTS

  • libsolv
    No fix yet

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.