CVE-2026-110646

HIGHPre-NVD 8.18.1
EchelonGraph scoreHIGH confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 8.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-10-14. A secondary CVSS source baseline 8.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 3 sources updated this week

Also known asEUVD-2026-101274 (ENISA EUVD) · GHSA-j7cw-xwmc-w7qg (GitHub Security Advisories)Source: ENISA EUVD

8.1EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2.1%CVSS: 8.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Beganovich snappdf from 1.1.0 before 6.1.0 contains an OS command injection vulnerability on Windows that allows attackers to run commands by influencing the rendered URL. Attackers can supply cmd.exe metacharacters such as & in the setUrl() value, which executeOnWindows() passes unescaped to PHP exec(), executing commands as the PHP process.

CVSS v3
8.1
EG Score
8.1HIGHhigh confidence
EG Risk
37
EG Risk 37/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity81% × 45%
Impact severity (EG Severity): CVSS 8.1 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation2.1% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Track* at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
2.1%
EPSS %ILE
81st
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (8.1): severity, escalated by confirmed exploitation. This CVE's 8.1 is its impact severity (EG Severity), not escalated.

EG Severity
8.1 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
2.1% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-10-27). FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Track* at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; Fix on system upgrade if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

October 14, 2026

Last Modified

October 20, 2026

Advisory Details (5)

Auto-updated Oct 14, 2026
Patch available. Sources: github_commit, github_release, github_pr.
Web page

Beganovich snappdf 1.1.0 before 6.1.0 OS Command Injection on Windows via setUrl() | Advisories | VulnCheck

https://www.vulncheck.com/advisories/beganovich-snappdf-1.1.0-before-6.1.0-os-command-injection-on-windows-via-seturl
GitHub release Patch Available

v6.1.0

Patch available: beganovich/snappdf v6.1.0

https://github.com/beganovich/snappdf/releases/tag/v6.1.0
Web page

snappdf/src/Snappdf.php at v6.0.0 · beganovich/snappdf · GitHub

https://github.com/beganovich/snappdf/blob/v6.0.0/src/Snappdf.php#L280-L284
GitHub commit Patch Available

commit 5197bd3bcc4d (beganovich/snappdf)

Patch available: beganovich/snappdf v6.1.0 (contains commit 5197bd3bcc4d)

https://github.com/beganovich/snappdf/commit/5197bd3bcc4df44e17246dbceea9ce51eb390eae
GitHub pull request Patch Available

Fix command injection on Windows (unescaped argv passed to exec)

Patch available: beganovich/snappdf v6.1.0 (PR #54 merged 2026-07-01)

https://github.com/beganovich/snappdf/pull/54

Vendor Advisories for CVE-2026-110646(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 8× in last 7d / 32× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

  1. 2026-11-01 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  2. 2026-10-31 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  3. 2026-10-30 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  4. 2026-10-29 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  5. 2026-10-28 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  6. 2026-10-27 20:39 UTCEG score recompute
  7. 2026-10-27 20:39 UTCGHSA enrichmentGHSA-j7cw-xwmc-w7qg · GitHub severity CRITICAL · GitHub CVSS 8.1
  8. 2026-10-27 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  9. 2026-10-25 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  10. 2026-10-25 14:52 UTCEG score recompute
  11. 2026-10-24 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  12. 2026-10-23 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  13. 2026-10-22 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  14. 2026-10-22 11:34 UTCEG score recompute
  15. 2026-10-22 11:34 UTCGHSA enrichmentGHSA-j7cw-xwmc-w7qg · GitHub severity CRITICAL · GitHub CVSS 8.1
  16. 2026-10-21 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  17. 2026-10-20 16:32 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  18. 2026-10-20 02:26 UTCEG score recompute
  19. 2026-10-20 02:26 UTCGHSA enrichmentGHSA-j7cw-xwmc-w7qg · GitHub severity CRITICAL · GitHub CVSS 8.1
  20. 2026-10-20 01:33 UTCEG score recompute
  21. 2026-10-20 01:33 UTCGHSA enrichmentGHSA-j7cw-xwmc-w7qg · GitHub severity CRITICAL · GitHub CVSS 8.1
  22. 2026-10-19 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  23. 2026-10-18 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  24. 2026-10-18 05:06 UTCEG score recompute
  25. 2026-10-17 16:33 UTCEPSS rescoreEPSS 2.1% · 81st percentile
Show 7 more
  1. 2026-10-16 19:32 UTCEG score recompute
  2. 2026-10-16 19:31 UTCGHSA enrichmentGHSA-j7cw-xwmc-w7qg · GitHub severity CRITICAL · GitHub CVSS 8.1
  3. 2026-10-16 16:40 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  4. 2026-10-15 16:31 UTCEPSS rescoreEPSS 2.1% · 81st percentile
  5. 2026-10-14 15:30 UTCEG score recompute
  6. 2026-10-14 14:32 UTCEG score recomputeFirst assessed: 8.1 HIGH
  7. 2026-10-14 14:29 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-110646?
CVE-2026-110646 is a high-severity vulnerability; its CVE record was published on October 14, 2026. Beganovich snappdf from 1.1.0 before 6.1.0 contains an OS command injection vulnerability on Windows that allows attackers to run commands by influencing the rendered URL. Attackers can supply cmd.exe metacharacters such as & in the setUrl() value, which executeOnWindows() passes unescaped to PHP…
When was CVE-2026-110646 made public?
CVE-2026-110646 was made public on June 29, 2026: that is the date its CVE record's CNA, VulnCheck, gives for when the vulnerability was made public. The CVE record itself was published on October 14, 2026. EchelonGraph's copy of the record carries a last-modified date of October 20, 2026; the record at its source may have been updated since.
Is CVE-2026-110646 actively exploited?
CVE-2026-110646 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2.1% probability of exploitation in the next 30 days (81st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-110646?
CVE-2026-110646 has a CVSS base score of 8.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-110646?
A fix for CVE-2026-110646 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-110646 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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