CVE-2026-105691

CRITICALPre-NVD 9.99.9
EchelonGraph scoreMEDIUM confidence

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

This critical-severity CVE scores 9.9 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.5% (40th percentile of EPSS-scored CVEs). No GitHub Security Advisory CVSS is on record for this CVE.

Triggered by: Headline CVSS from a secondary CVSS source
Sources: EPSS, a secondary CVSS source
Elevated

Also known asEUVD-2026-92709 (ENISA EUVD)Source: ENISA EUVD

9.9EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • CISA's Vulnrichment rates exploitation as PoC; EchelonGraph holds no exploit-code reference for it
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.9Exploit: No code on recordExposed services: Not assessed

A fix is available — apply it.

Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the SVG exporter places an attacker-controlled text object's fill-color value into a ppmcolormask command string and executes that string through child_process.exec. A user who can edit a file can store shell metacharacters in the fill color and trigger SVG export, causing commands to execute with the exporter service's privileges. The same export can be triggered through a valid public share link to a malicious file. This vulnerability is fixed in 2.18.0.

CVSS v3
9.9
EG Score
9.9CRITICALmedium confidence
EG Risk
61
EG Risk 61/100

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)
Severity99% × 45%
Impact severity (EG Severity): CVSS 9.9 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation40% × 40%
EchelonGraph's fixed weight for EG-KEV Tier 3 (Elevated): a constant, not a probability.
Automatability0% × 15%
CISA's SSVC Automatable value: no (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low, Track* at medium and Attend at high mission impact.
Exploitation public PoC (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 at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
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 (9.9): severity, escalated by confirmed exploitation. This CVE's 9.9 is its impact severity (EG Severity), not escalated.

EG Severity
9.9 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.a secondary CVSS source · CVSS v3.0 or v3.1
EG Likelihood
0.5% within 30 daysSource: FIRST EPSS (model v2026.06.15, score date 2026-11-01). 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, Track* at medium and Attend at high mission impact.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, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (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 5, 2026

Last Modified

October 6, 2026

Advisory Details (4)

Auto-updated Oct 28, 2026
🔬 Proof of concept available. Patch available. Sources: github_commit, github_pr, github_release, github.
GitHub advisoryMentions a patch (unverified)🟡 PoC Available

Authenticated OS Command Injection in Penpot SVG Exporter via Legacy fill-color · Advisory · penpot/penpot · GitHub

https://github.com/penpot/penpot/security/advisories/GHSA-4f36-m4hj-cv86
GitHub release Patch Available

2.18.0

Patch available: penpot/penpot 2.18.0

https://github.com/penpot/penpot/releases/tag/2.18.0
GitHub pull request

:bug: Fix linear gradients in SVG text exports

Fix merged in penpot/penpot PR #11272 on 2026-08-19 — awaiting tagged release

https://github.com/penpot/penpot/pull/11272
GitHub commit Patch Available

commit aa3bc1ae9845 (penpot/penpot)

Patch available: penpot/penpot 2.18.0 (contains commit aa3bc1ae9845)

https://github.com/penpot/penpot/commit/aa3bc1ae984577f0354d4270d2546e15985f4bcf

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 12× in last 7d / 59× 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. 2026-11-02 16:43 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  2. 2026-11-01 18:28 UTCEG score recompute
  3. 2026-11-01 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  4. 2026-10-31 18:02 UTCEG score recompute
  5. 2026-10-30 17:35 UTCEG score recompute
  6. 2026-10-30 16:33 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  7. 2026-10-29 17:10 UTCEG score recompute
  8. 2026-10-29 16:32 UTCEPSS rescoreEPSS 0.5% · 40th percentile
  9. 2026-10-28 16:44 UTCEG score recompute
  10. 2026-10-28 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  11. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  12. 2026-10-27 16:14 UTCEG score recompute
  13. 2026-10-26 16:30 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  14. 2026-10-26 15:38 UTCEG score recompute
  15. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.5% · 39th percentile
  16. 2026-10-25 14:55 UTCEG score recompute
  17. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  18. 2026-10-24 14:39 UTCEG score recompute
  19. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  20. 2026-10-23 14:12 UTCEG score recompute
  21. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  22. 2026-10-22 13:45 UTCEG score recompute
  23. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  24. 2026-10-21 13:19 UTCEG score recompute
  25. 2026-10-20 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
Show 34 more
  1. 2026-10-20 12:41 UTCEG score recompute
  2. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  3. 2026-10-19 12:13 UTCEG score recompute
  4. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  5. 2026-10-18 05:08 UTCEG score recompute
  6. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  7. 2026-10-17 08:32 UTCEG score recompute
  8. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  9. 2026-10-16 08:05 UTCEG score recompute
  10. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  11. 2026-10-15 07:08 UTCEG score recompute
  12. 2026-10-14 16:31 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  13. 2026-10-14 03:00 UTCEG score recompute
  14. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  15. 2026-10-12 16:39 UTCEG score recompute
  16. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  17. 2026-10-11 20:15 UTCEG score recompute
  18. 2026-10-11 18:00 UTCEG score recompute
  19. 2026-10-11 13:52 UTCEG score recompute
  20. 2026-10-11 13:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  21. 2026-10-10 21:18 UTCEG score recompute
  22. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  23. 2026-10-09 20:30 UTCEG score recompute
  24. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  25. 2026-10-08 19:40 UTCEG score recompute
  26. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  27. 2026-10-08 02:31 UTCEG score recompute
  28. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 29th percentile
  29. 2026-10-06 17:19 UTCEG score recompute
  30. 2026-10-06 16:52 UTCEG score recompute
  31. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 28th percentile
  32. 2026-10-05 20:25 UTCEG score recompute
  33. 2026-10-05 20:12 UTCEG score recomputeFirst assessed: 9.9 CRITICAL
  34. 2026-10-05 20:10 UTCMITRE cvelistV5first tracked

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Frequently asked(5)

What is CVE-2026-105691?
CVE-2026-105691 is a critical-severity vulnerability; its CVE record was published on October 5, 2026. Penpot is an open-source design and prototyping platform. Prior to 2.18.0, the SVG exporter places an attacker-controlled text object's fill-color value into a ppmcolormask command string and executes that string through child_process.exec. A user who can edit a file can store shell metacharacters…
When was the CVE record for CVE-2026-105691 published?
The CVE record for CVE-2026-105691 was published on October 5, 2026. That is the record's publication date; the vulnerability itself may have been made public earlier. EchelonGraph's copy of the record carries a last-modified date of October 6, 2026; the record at its source may have been updated since.
Is CVE-2026-105691 actively exploited?
CVE-2026-105691 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-105691?
CVE-2026-105691 has a CVSS base score of 9.9 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-105691?
A fix for CVE-2026-105691 is available: update to the fixed version the vendor names in its advisory.

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