CVE-2026-49286

HIGHPre-NVD 8.18.1—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 8.1 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.6%, top 58% of all CVEs by exploit prediction. 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: epss, secondary
8.1
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 8.1Exploit: NoneExposed: 0

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

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc. bypass the check and reach fileExists() (file_exists()) in prepareOutput(). On PHP 7 (which the library still supports — PHP 7.4+), this triggers deserialization of a crafted PHAR archive's metadata, leading to remote code execution. This is the patch-bypass of CVE-2023-28115. The same issue and fix were handled upstream in KnpLabs/snappy (GHSA-92rv-4j2h-8mjj). PhpWeasyPrint version 2.6.0 contains a patch for the issue.

CVSS v3
8.1
EG Score
8.1(medium)
EPSS
42.3%
KEV
Not listed

Published

June 19, 2026

Last Modified

June 22, 2026

Advisory Details (4)

Auto-updated Jun 19, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
github Patch Available🟡 PoC Available

PHAR deserialization via output filename (CVE-2023-28115 case-insensitive bypass) · Advisory · pontedilana/php-weasyprint · GitHub

https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-2fmj-p74r-3wjm
github_release Patch Available

2.6.0

Patch available: pontedilana/php-weasyprint 2.6.0

https://github.com/pontedilana/php-weasyprint/releases/tag/2.6.0
github_commit Patch Available

commit d1aa487722b5 (pontedilana/php-weasyprint)

Patch available: pontedilana/php-weasyprint 2.6.0 (contains commit d1aa487722b5)

https://github.com/pontedilana/php-weasyprint/commit/d1aa487722b5a3cab9b222b85fdb5608a5a550c3
github Patch Available🟡 PoC Available

PHAR deserialization (CVE-2023-28115 patch bypass) · Advisory · KnpLabs/snappy · GitHub

https://github.com/KnpLabs/snappy/security/advisories/GHSA-92rv-4j2h-8mjj

Vendor Advisories for CVE-2026-49286(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 21× in last 7d / 55× 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. 2026-07-07 06:11 UTCEG score recompute
  2. 2026-07-06 18:58 UTCEG score recompute
  3. 2026-07-06 16:27 UTCEPSS rescore
  4. 2026-07-06 06:41 UTCEG score recompute
  5. 2026-07-06 02:23 UTCEPSS rescore
  6. 2026-07-05 19:30 UTCEG score recompute
  7. 2026-07-05 08:17 UTCEG score recompute
  8. 2026-07-05 02:30 UTCEPSS rescore
  9. 2026-07-04 21:04 UTCEG score recompute
  10. 2026-07-04 09:53 UTCEG score recompute
  11. 2026-07-04 06:31 UTCEPSS rescore
  12. 2026-07-03 22:41 UTCEG score recompute
  13. 2026-07-03 11:29 UTCEG score recompute
  14. 2026-07-03 00:05 UTCEG score recompute
  15. 2026-07-02 12:53 UTCEG score recompute
  16. 2026-07-02 01:42 UTCEG score recompute
  17. 2026-07-01 15:07 UTCEPSS rescore
  18. 2026-07-01 14:31 UTCEG score recompute
  19. 2026-07-01 03:20 UTCEG score recompute
  20. 2026-06-30 23:22 UTCEPSS rescore
  21. 2026-06-30 16:08 UTCEG score recompute
  22. 2026-06-30 04:57 UTCEG score recompute
  23. 2026-06-29 17:39 UTCEG score recompute
  24. 2026-06-29 14:06 UTCEPSS rescore
  25. 2026-06-29 14:06 UTCEPSS rescore
Show 30 more
  1. 2026-06-29 06:27 UTCEG score recompute
  2. 2026-06-28 19:14 UTCEG score recompute
  3. 2026-06-28 14:07 UTCEPSS rescore
  4. 2026-06-28 08:02 UTCEG score recompute
  5. 2026-06-28 04:56 UTCEPSS rescore
  6. 2026-06-28 04:56 UTCEPSS rescore
  7. 2026-06-27 20:51 UTCEG score recompute
  8. 2026-06-27 09:40 UTCEG score recompute
  9. 2026-06-27 03:08 UTCEPSS rescore
  10. 2026-06-26 22:29 UTCEG score recompute
  11. 2026-06-26 11:18 UTCEG score recompute
  12. 2026-06-25 20:58 UTCEG score recompute
  13. 2026-06-25 13:49 UTCEPSS rescore
  14. 2026-06-25 09:46 UTCEG score recompute
  15. 2026-06-24 22:35 UTCEG score recompute
  16. 2026-06-24 14:05 UTCEPSS rescore
  17. 2026-06-24 11:23 UTCEG score recompute
  18. 2026-06-24 00:12 UTCEG score recompute
  19. 2026-06-23 21:33 UTCEPSS rescore
  20. 2026-06-23 21:33 UTCEPSS rescore
  21. 2026-06-23 12:58 UTCEG score recompute
  22. 2026-06-23 01:47 UTCEG score recompute
  23. 2026-06-22 14:35 UTCEG score recompute
  24. 2026-06-22 03:22 UTCEG score recompute
  25. 2026-06-21 16:08 UTCEG score recompute
  26. 2026-06-21 04:53 UTCEG score recompute
  27. 2026-06-20 17:39 UTCEG score recompute
  28. 2026-06-20 06:27 UTCEG score recompute
  29. 2026-06-19 19:14 UTCEG score recompute
  30. 2026-06-19 19:14 UTCNVD updatefirst tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-49286?
CVE-2026-49286 is a high vulnerability published on June 19, 2026. PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint guarded the output filename against the phar:// stream wrapper with a case-sensitive blacklist. PHP stream wrappers are case-insensitive, so PHAR://, Phar://, etc.…
When was CVE-2026-49286 disclosed?
CVE-2026-49286 was first published in the National Vulnerability Database on June 19, 2026, with the most recent update on June 22, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49286 actively exploited?
CVE-2026-49286 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 42.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-49286?
CVE-2026-49286 has a CVSS v3 base score of 8.1 (NVD).
How do I remediate CVE-2026-49286?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-49286, 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.

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