CVE-2026-52584

HIGHPre-NVD 7.17.1—
EchelonGraph scoreHIGH confidence

Score 7.1 from GitHub Security Advisory (severity: HIGH) published 2026-07-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this weekElevated
7.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.1Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

Buffer Overflow vulnerability in libjxl v.0.11.2 and before allows a local attacker to obtain sensitive information via the DecodeImageAPNG function

CVSS v3
7.1
EG Score
7.1(high)
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 PROB
0%
EPSS %ILE
2%
KEV
Not listed

Published

July 17, 2026

Last Modified

July 23, 2026

Advisory Details (2)

Auto-updated Jul 20, 2026
No patch confirmed yet. Sources: github_pr.
generic

Heap-buffer-overflow issue in function DecodeImageAPNG of file lib/extras/dec/apng.cc · Issue #4803 · libjxl/libjxl · GitHub

https://github.com/libjxl/libjxl/issues/4803
github_pr

fix heap-buffer-overflow issue in function DecodeImageAPNG of file lib/extras/dec/apng.cc

Upstream fix in progress (PR #4804 · libjxl/libjxl, state=closed)

https://github.com/libjxl/libjxl/pull/4804

Vendor Advisories for CVE-2026-52584(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 17× in last 7d / 29× 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. 2026-07-28 00:24 UTCEG score recompute
  2. 2026-07-28 00:24 UTCGHSA enrichment
  3. 2026-07-27 13:14 UTCGHSA enrichment
  4. 2026-07-27 02:22 UTCGHSA enrichment
  5. 2026-07-26 15:31 UTCEG score recompute
  6. 2026-07-26 15:31 UTCGHSA enrichment
  7. 2026-07-26 14:54 UTCEPSS rescore
  8. 2026-07-26 04:37 UTCEG score recompute
  9. 2026-07-26 04:37 UTCGHSA enrichment
  10. 2026-07-25 14:18 UTCEPSS rescore
  11. 2026-07-24 14:18 UTCEPSS rescore
  12. 2026-07-23 14:18 UTCEPSS rescore
  13. 2026-07-23 03:19 UTCEG score recompute
  14. 2026-07-23 00:24 UTCEG score recompute
  15. 2026-07-23 00:23 UTCGHSA enrichment
  16. 2026-07-22 14:08 UTCEPSS rescore
  17. 2026-07-21 15:25 UTCEPSS rescore
  18. 2026-07-20 17:58 UTCEG score recompute▲ 7.10
  19. 2026-07-20 17:58 UTCGHSA enrichment
  20. 2026-07-20 17:57 UTCMITRE cvelistV5CVSS v3 → 7.1 · severity → HIGH
  21. 2026-07-20 17:08 UTCEPSS rescore
  22. 2026-07-19 14:31 UTCEPSS rescore
  23. 2026-07-19 14:31 UTCEPSS rescore
  24. 2026-07-19 02:30 UTCEG score recompute
  25. 2026-07-19 02:30 UTCGHSA enrichment
Show 4 more
  1. 2026-07-19 02:29 UTCEPSS rescore
  2. 2026-07-17 22:01 UTCNVD update
  3. 2026-07-17 21:00 UTCEG score recompute
  4. 2026-07-17 20:59 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-52584?
CVE-2026-52584 is a high vulnerability published on July 17, 2026. Buffer Overflow vulnerability in libjxl v.0.11.2 and before allows a local attacker to obtain sensitive information via the DecodeImageAPNG function
When was CVE-2026-52584 disclosed?
CVE-2026-52584 was first published in the National Vulnerability Database on July 17, 2026, with the most recent update on July 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-52584 actively exploited?
CVE-2026-52584 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 98.1% of all scored CVEs.
What is the CVSS score of CVE-2026-52584?
CVE-2026-52584 has a CVSS v3.1 base score of 7.1 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-52584?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-52584, 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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