CVE-2026-49359

MEDIUMPre-NVD 6.56.5—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 64% 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
Elevated
6.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 6.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

PhpWeasyPrint is a PHP library allowing PDF generation from a URL or an HTML page. Prior to version 2.6.0, pontedilana/php-weasyprint fetches the content of option values server-side via file_get_contents() when the value looks like a URL, without restricting the URL scheme. The attachment option of Pdf is the reachable sink: any value that passes isOptionUrl() (filter_var(..., FILTER_VALIDATE_URL)) is downloaded by the PHP process and embedded into the generated PDF. Because FILTER_VALIDATE_URL accepts http, https, ftp, file and PHP stream wrappers such as php://, an attacker who can influence the attachment value reaches both a Server-Side Request Forgery primitive (e.g. internal HTTP endpoints, cloud metadata) and a local file disclosure primitive (file://, php://filter/...), with the fetched bytes exfiltrated as a PDF attachment. This is the same class of issue KnpLabs/snappy patched for its xsl-style-sheet option in GHSA-c5fp-p67m-gq56. The library is documented as a one-to-one substitute for KnpLabs/snappy and shares the same code shape. PhpWeasyPrint version 2.6.0 contains a patch for the issue.

CVSS v3
6.5
EG Score
6.5MEDIUMmedium confidence
EG Risk
45
EG Risk 45/100

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
Severity65% × 45%
Exploitation40% × 40%
Automatability0% × 15%
EPSS PROB
0.4%
EPSS %ILE
34th
KEV
Not listed

Published

June 19, 2026

Last Modified

June 23, 2026

Advisory Details (4)

Auto-updated Jun 19, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit, github_release.
githubMentions a patch (unverified)🟡 PoC Available

SSRF and local file disclosure via the attachment option · Advisory · pontedilana/php-weasyprint · GitHub

https://github.com/pontedilana/php-weasyprint/security/advisories/GHSA-x8g9-h984-pc36
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 9582dcf119a4 (pontedilana/php-weasyprint)

Patch available: pontedilana/php-weasyprint 2.6.0 (contains commit 9582dcf119a4)

https://github.com/pontedilana/php-weasyprint/commit/9582dcf119a405276cf55e9e10bc577a887792cb
githubMentions a patch (unverified)

SSRF and local file read via the xsl-style-sheet option · Advisory · KnpLabs/snappy · GitHub

https://github.com/KnpLabs/snappy/security/advisories/GHSA-c5fp-p67m-gq56

Vendor Advisories for CVE-2026-49359(1)

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

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
pontedilana/php-weasyprint0.10.0 ... 2.5.1 (21 versions)
  • every version up to 2.6.0: fixed in 2.6.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 23× 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 124 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
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Same product

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Packagist:pontedilana/php-weasyprint

Frequently asked(5)

What is CVE-2026-49359?
CVE-2026-49359 is a medium 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 fetches the content of option values server-side via filegetcontents() when the value looks like a URL, without restricting the URL scheme. The attachment option of…
When was CVE-2026-49359 disclosed?
CVE-2026-49359 was first published on June 19, 2026, with the most recent update on June 23, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-49359 actively exploited?
CVE-2026-49359 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (34th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-49359?
CVE-2026-49359 has a CVSS base score of 6.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-49359?
A fix for CVE-2026-49359 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-49359 are linked in the Vendor Advisories panel on this page.

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