CVE-2026-48864

HIGHPre-NVD 7.87.8—
EchelonGraph scoreMEDIUM confidence

Score 7.8 from GitHub Security Advisory (severity: HIGH) published 2026-05-26. a secondary CVSS source baseline 7.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
7.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.8Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within .solv files due to insufficient input validation. An attacker can provide a specially crafted .solv file, which, when processed by a vulnerable application, can lead to out-of-bounds memory access. This could result in information disclosure, alteration of program execution, or a denial of service.

CVSS v3
7.8
EG Score
7.8(medium)
EG Risk
35(Track)
EG Risk 35/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity78% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
13%
KEV
Not listed

Published

May 26, 2026

Last Modified

August 26, 2026

Advisory Details (3)

Auto-updated May 28, 2026
Patch available. Sources: redhat.
redhat

2460425 – (CVE-2026-48864) CVE-2026-48864 libsolv: Heap buffer overflow in libsolv repopagestore via unchecked decompression of malicious .solv page data

https://bugzilla.redhat.com/show_bug.cgi?id=2460425
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-48864
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:21333

Vendor Advisories for CVE-2026-48864(20)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(17)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
redhatinsights-proxy/insights-proxy-container-rhel9:17864336562026-08-11redhat
redhatsatellite-capsule:el8/libsolv-1:0.7.20-7.el8sat2026-08-04redhat
redhatlibsolv-0:0.6.34-4.el7_9.12026-08-03redhat
redhatlibsolv-0:0.7.24-3.el9_6.12026-07-31redhat
redhatlibsolv-0:0.7.20-1.el8_6.12026-07-31redhat
redhatlibsolv-0:0.7.29-8.el10_0.12026-07-31redhat
redhatlibsolv-0:0.7.24-2.el9_4.12026-07-31redhat
redhatlibsolv-0:0.7.20-4.el8_8.12026-07-31redhat
redhatlibsolv-0:0.7.22-4.el9_2.12026-07-31redhat
redhatlibsolv-0:0.7.16-3.el8_4.12026-07-31redhat
redhatdiscovery/discovery-ui-rhel9:17848217502026-07-27redhat
redhatrhui5/rhua-rhel9:17847950762026-07-23redhat
redhatlibsolv-0:0.7.24-6.el9_82026-07-14redhat
redhatlibsolv-0:0.7.20-7.el8_102026-07-08redhat
redhatlibsolv-0:0.7.33-5.el10_22026-06-23redhat
redhatlibsolv-main-0.7.38-2.hum12026-05-27redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(4 across 4 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
libsolv0.7.17-1 ... 0.7.39-1 (25 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
libsolv0.7.23-1 ... 0.7.39-1 (20 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
libsolv0.7.32-1 ... 0.7.39-1 (6 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
libsolv0.7.32-1 ... 0.7.39-1 (6 versions)——

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 37× in last 7d / 151× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 346 total refreshes for this CVE.

  1. 2026-08-30 19:17 UTCEPSS rescore
  2. 2026-08-28 21:41 UTCEPSS rescore
  3. 2026-08-27 14:25 UTCEPSS rescore
  4. 2026-08-26 23:21 UTCEG score recompute
  5. 2026-08-26 23:21 UTCVendor advisory
  6. 2026-08-26 23:21 UTCGHSA enrichment
  7. 2026-08-26 23:11 UTCEG score recompute
  8. 2026-08-26 23:11 UTCVendor advisory
  9. 2026-08-26 23:11 UTCGHSA enrichment
  10. 2026-08-26 17:45 UTCVendor advisory
  11. 2026-08-26 17:44 UTCGHSA enrichment
  12. 2026-08-26 16:23 UTCEG score recompute
  13. 2026-08-26 16:23 UTCVendor advisory
  14. 2026-08-26 16:23 UTCGHSA enrichment
  15. 2026-08-26 14:46 UTCEPSS rescore
  16. 2026-08-26 13:43 UTCEG score recompute
  17. 2026-08-26 13:43 UTCVendor advisory
  18. 2026-08-26 13:43 UTCGHSA enrichment
  19. 2026-08-25 16:28 UTCEG score recompute
  20. 2026-08-25 16:28 UTCVendor advisory
  21. 2026-08-25 16:28 UTCGHSA enrichment
  22. 2026-08-25 16:11 UTCEG score recompute
  23. 2026-08-25 16:11 UTCVendor advisory
  24. 2026-08-25 16:11 UTCGHSA enrichment
  25. 2026-08-25 13:49 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 10:22 UTCEG score recompute
  2. 2026-08-25 10:22 UTCVendor advisory
  3. 2026-08-25 10:22 UTCGHSA enrichment
  4. 2026-08-25 09:57 UTCEG score recompute
  5. 2026-08-25 09:57 UTCVendor advisory
  6. 2026-08-25 09:57 UTCGHSA enrichment
  7. 2026-08-24 12:24 UTCEG score recompute
  8. 2026-08-24 12:24 UTCVendor advisory
  9. 2026-08-24 12:24 UTCGHSA enrichment
  10. 2026-08-24 12:02 UTCEG score recompute
  11. 2026-08-24 12:02 UTCVendor advisory
  12. 2026-08-24 12:02 UTCGHSA enrichment
  13. 2026-08-23 15:58 UTCEG score recompute
  14. 2026-08-23 15:58 UTCVendor advisory
  15. 2026-08-23 15:58 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 21:23 UTCEG score recompute
  19. 2026-08-21 21:23 UTCVendor advisory
  20. 2026-08-21 21:23 UTCGHSA enrichment
  21. 2026-08-20 22:55 UTCEPSS rescore
  22. 2026-08-20 18:04 UTCEG score recompute
  23. 2026-08-20 18:04 UTCVendor advisory
  24. 2026-08-20 18:04 UTCGHSA enrichment
  25. 2026-08-19 17:04 UTCEPSS rescore
  26. 2026-08-17 13:47 UTCEPSS rescore
  27. 2026-08-17 09:33 UTCVendor advisory
  28. 2026-08-17 09:33 UTCGHSA enrichment
  29. 2026-08-16 16:32 UTCEG score recompute
  30. 2026-08-16 16:32 UTCVendor advisory
  31. 2026-08-16 16:32 UTCGHSA enrichment
  32. 2026-08-16 14:56 UTCEPSS rescore
  33. 2026-08-16 03:05 UTCEG score recompute
  34. 2026-08-16 03:05 UTCVendor advisory
  35. 2026-08-16 03:05 UTCGHSA enrichment
  36. 2026-08-16 02:14 UTCEPSS rescore
  37. 2026-08-15 03:00 UTCEG score recompute
  38. 2026-08-15 03:00 UTCVendor advisory
  39. 2026-08-15 03:00 UTCGHSA enrichment
  40. 2026-08-15 01:30 UTCEPSS rescore
  41. 2026-08-14 14:10 UTCVendor advisory
  42. 2026-08-14 14:10 UTCGHSA enrichment
  43. 2026-08-14 01:42 UTCEG score recompute
  44. 2026-08-14 01:42 UTCVendor advisory
  45. 2026-08-14 01:42 UTCGHSA enrichment
  46. 2026-08-13 22:00 UTCEPSS rescore
  47. 2026-08-13 00:03 UTCEG score recompute
  48. 2026-08-13 00:03 UTCVendor advisory
  49. 2026-08-13 00:03 UTCGHSA enrichment
  50. 2026-08-12 13:51 UTCEPSS rescore
  51. 2026-08-12 11:35 UTCVendor advisory
  52. 2026-08-12 11:35 UTCGHSA enrichment
  53. 2026-08-11 22:53 UTCEG score recompute
  54. 2026-08-11 22:53 UTCVendor advisory
  55. 2026-08-11 22:53 UTCGHSA enrichment
  56. 2026-08-11 10:23 UTCEG score recompute
  57. 2026-08-11 10:23 UTCVendor advisory
  58. 2026-08-11 10:23 UTCGHSA enrichment
  59. 2026-08-11 09:38 UTCEG score recompute
  60. 2026-08-11 09:38 UTCVendor advisory
  61. 2026-08-11 09:38 UTCGHSA enrichment
  62. 2026-08-11 02:03 UTCEG score recompute
  63. 2026-08-11 02:03 UTCVendor advisory
  64. 2026-08-11 02:03 UTCGHSA enrichment
  65. 2026-08-11 00:00 UTCEPSS rescore
  66. 2026-08-10 13:34 UTCVendor advisory
  67. 2026-08-10 13:34 UTCGHSA enrichment
  68. 2026-08-10 00:54 UTCEG score recompute
  69. 2026-08-10 00:54 UTCVendor advisory
  70. 2026-08-10 00:54 UTCGHSA enrichment
  71. 2026-08-09 13:46 UTCEPSS rescore
  72. 2026-08-09 12:26 UTCVendor advisory
  73. 2026-08-09 12:26 UTCGHSA enrichment
  74. 2026-08-08 23:56 UTCVendor advisory
  75. 2026-08-08 23:56 UTCGHSA enrichment

Frequently asked(5)

What is CVE-2026-48864?
CVE-2026-48864 is a high vulnerability published on May 26, 2026. A flaw was found in libsolv. This heap buffer overflow occurs during the decompression of attacker-controlled compressed data within .solv files due to insufficient input validation. An attacker can provide a specially crafted .solv file, which, when processed by a vulnerable application, can lead…
When was CVE-2026-48864 disclosed?
CVE-2026-48864 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on August 26, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48864 actively exploited?
CVE-2026-48864 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 86.8% of all scored CVEs.
What is the CVSS score of CVE-2026-48864?
CVE-2026-48864 has a CVSS v3 base score of 7.8 (NVD).
How do I remediate CVE-2026-48864?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48864, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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