Libsolv: heap buffer overflow in libsolv repo_add_solv via negative maxsize from crafted .solv file

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

• opensuse libsolvup to 0.7.36 inclusive
• redhat enterprise linux10.0
• redhat enterprise linux7.0
• redhat enterprise linux8.0
• redhat enterprise linux9.0
• redhat hardened imagesall versions
• redhat openshift container platform4.0
• redhat satellite6.0
• redhat update infrastructure4

Versions reported by the vendor

Affected version ranges reported by the assigning authority (redhat). Independent of NVD's CPE analysis and usually ahead of it.

• Red Hat Red Hat Enterprise Linux 10

  • 0:0.7.33-5.el10_2 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support

  • 0:0.7.29-8.el10_0.1 and laternot affected · rpm

• Red Hat Red Hat Enterprise Linux 7

  • all versionsaffected

• Red Hat Red Hat Enterprise Linux 8

  • all versionsaffected

• Red Hat Red Hat Enterprise Linux 9

  • all versionsaffected

• Red Hat Red Hat Hardened Images

  • 0.7.38-2.hum1 and laternot affected · rpm

• Red Hat Red Hat OpenShift Container Platform 4

  • all versionsaffected
  • all versionsaffected

• Red Hat Red Hat Satellite 6

  • all versionsaffected

• Red Hat Red Hat Update Infrastructure 4 for Cloud Providers

  • all versionsaffected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Other highest-scoring records for the same primary product.

• CVE-2026-48864Libsolv: heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data
  31Monitor
• CVE-2019-20387repodata_schema2id in repodata.c in libsolv before 0.7.6 has a heap-based buffer over-read via a last schema whose length is less than the l
  31Monitor
• CVE-2026-48863Libsolv: stack-based buffer overflow in libsolv eddsa pgp signature verification allows denial of service
  30Monitor
• CVE-2021-33938Buffer overflow vulnerability in function prune_to_recommended in src/policy.c in libsolv before 0.7.17 allows attackers to cause a Denial o
  30Monitor
• CVE-2021-33930Buffer overflow vulnerability in function pool_installable_whatprovides in src/repo.h in libsolv before 0.7.17 allows attackers to cause a D
  30Monitor
• CVE-2021-33929Buffer overflow vulnerability in function pool_disabled_solvable in src/repo.h in libsolv before 0.7.17 allows attackers to cause a Denial o
  30Monitor

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.