CVE-2026-48029

HIGHPre-NVD 7.17.1
EchelonGraph scoreLOW confidence

This high-severity CVE scores 7.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit-prediction score not yet available (the EPSS model rescores nightly; freshly-published CVEs typically appear within 48 hours). GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: secondary
Trending — 4 sources updated this weekElevated
7.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 0%CVSS: 7.1Exploit: NoneExposed: 0

A fix is available — apply it.

libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.

CVSS v3
7.1
EG Score
7.1(low)
EG Risk
48(Track)
EG Risk 48/100SSVC: 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
Severity71% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
26.4%
KEV
Not listed

Published

July 22, 2026

Last Modified

July 22, 2026

Advisory Details (2)

Auto-updated Jul 22, 2026
Patch available. Sources: github_commit, github.
github Patch Available

libheif 1.21.2: heap OOB read in ImageItem_Grid::decode_grid_tile via irot-induced tile-coordinate underflow · Advisory · strukturag/libheif · GitHub

https://github.com/strukturag/libheif/security/advisories/GHSA-6x5f-qchq-cxqv
github_commit Patch Available

commit e523ec0bf379 (strukturag/libheif)

Patch available: strukturag/libheif v1.22.0 (contains commit e523ec0bf379)

https://github.com/strukturag/libheif/commit/e523ec0bf379110b7c33d4c159f8b1202d332157

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibheif1 (1.21.2-3ubuntu0.3) @ resolute2026-07-22ubuntu

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.

Weakness Classification(2)

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

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 22× in last 7d / 22× 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.

  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 03:18 UTCEG score recompute
  3. 2026-07-22 21:59 UTCEG score recompute
  4. 2026-07-22 21:59 UTCVendor advisory
  5. 2026-07-22 17:09 UTCEG score recompute
  6. 2026-07-22 17:09 UTCVendor advisory
  7. 2026-07-22 16:39 UTCVendor advisory
  8. 2026-07-22 16:36 UTCVendor advisory
  9. 2026-07-22 16:33 UTCVendor advisory
  10. 2026-07-22 16:31 UTCVendor advisory
  11. 2026-07-22 16:29 UTCVendor advisory
  12. 2026-07-22 15:49 UTCVendor advisory
  13. 2026-07-22 15:45 UTCVendor advisory
  14. 2026-07-22 15:44 UTCVendor advisory
  15. 2026-07-22 15:44 UTCVendor advisory
  16. 2026-07-22 15:42 UTCVendor advisory
  17. 2026-07-22 15:39 UTCVendor advisory
  18. 2026-07-22 15:36 UTCVendor advisory
  19. 2026-07-22 15:35 UTCVendor advisory
  20. 2026-07-22 14:47 UTCEG score recompute
  21. 2026-07-22 14:47 UTCVendor advisory
  22. 2026-07-22 14:46 UTCMITRE cvelistV5first tracked

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-48029?
CVE-2026-48029 is a high vulnerability published on July 22, 2026. libheif is a HEIF and AVIF file format decoder and encoder. Versions 1.19.0 through 1.21.2 have a heap OOB read in ImageItemGrid::decodegrid_tile via irot-induced tile-coordinate underflow. Version 1.22.0 fixes the issue.
When was CVE-2026-48029 disclosed?
CVE-2026-48029 was first published in the National Vulnerability Database on July 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-48029 actively exploited?
CVE-2026-48029 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 26.4% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-48029?
CVE-2026-48029 has a CVSS v3 base score of 7.1 (NVD). The EG score is currently aggregating — additional source signals are being incorporated as they become available..
How do I remediate CVE-2026-48029?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-48029, 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

Explore the affected products and dependency analysis for CVE-2026-48029

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