CVE-2026-31938

CRITICALNVD 6.19.6
EchelonGraph scoreMEDIUM confidence

“▲” beside the score: it is higher than NVD's CVSS score.

Score 9.6 from GitHub Security Advisory (severity: CRITICAL) published 2026-03-17. NVD baseline CVSS 6.1; sources differ by 3.5.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, NVD CVSS v3
Trending — 5 sources updated this week

Also known asEUVD-2026-12755 (ENISA EUVD) · GHSA-wfv2-pwc8-crg5 (GitHub Security Advisories)Source: ENISA EUVD

9.6EG
EchelonGraph verdictMonitorRemediate within your standard update timelines (the SSVC decision on this page).
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.3%CVSS: 6.1Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

jsPDF is a library to generate PDFs in JavaScript. Prior to version 4.2.1, user control of the options argument of the output function allows attackers to inject arbitrary HTML (such as scripts) into the browser context the created PDF is opened in. The vulnerability can be exploited in the following scenario: the attacker provides values for the output options, for example via a web interface. These values are then passed unsanitized (automatically or semi-automatically) to the attack victim. The victim creates and opens a PDF with the attack vector using one of the vulnerable method overloads inside their browser. The attacker can thus inject scripts that run in the victims browser context and can extract or modify secrets from this context. The vulnerability has been fixed in jspdf@4.2.1. As a workaround, sanitize user input before passing it to the output method.

CVSS v3
6.1
EG Score
9.6CRITICALmedium confidence
EG Risk
43
EG Risk 43/100

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)
Severity96% × 45%
Impact severity (EG Severity): CVSS 9.6 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation0.3% × 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
0.3%
EPSS %ILE
19th
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 (9.6): severity, escalated by confirmed exploitation. This CVE's 9.6 is its impact severity (EG Severity), not escalated.

EG Severity
9.6 CRITICALCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.3% 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 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

March 18, 2026

Last Modified

September 7, 2026

Advisory Details (3)

Auto-updated Jul 15, 2026
Patch available. Sources: github, github_commit, github_release.
GitHub release Patch Available

v4.2.1

Patch available: parallax/jsPDF v4.2.1

https://github.com/parallax/jsPDF/releases/tag/v4.2.1
GitHub commit Patch Available

commit 87a40bbd07e6 (parallax/jsPDF)

Patch available: parallax/jsPDF v4.2.1 (contains commit 87a40bbd07e6)

https://github.com/parallax/jsPDF/commit/87a40bbd07e6b30575196370670b41f264aa78d7
GitHub advisoryMentions a patch (unverified)

HTML Injection in output methods · Advisory · parallax/jsPDF · GitHub

https://github.com/parallax/jsPDF/security/advisories/GHSA-wfv2-pwc8-crg5

Vendor Advisories for CVE-2026-31938(2)

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

Patch Availability(3)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatadvanced-cluster-security/rhacs-main-rhel8:17755942842026-04-08redhat
redhatadvanced-cluster-security/rhacs-main-rhel8:17755941192026-04-08redhat
npmjspdf @ 4.2.1 (fixes <= 4.2.0)—ghsa

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
npm(1)
PackageVulnerable rangeFix by version rangeDependents
jspdf—
  • every version up to 4.2.1: fixed in 4.2.1
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 13× in last 7d / 45× 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.

Showing the most recent 95 of 174 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. 5 repeat rows among the latest 100 are merged into the row they repeat. The 79 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-02 16:44 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  2. 2026-11-02 08:11 UTCEG score recompute
  3. 2026-11-02 08:11 UTCVendor advisory
  4. 2026-11-02 08:11 UTCGHSA enrichmentGHSA-wfv2-pwc8-crg5 · GitHub severity CRITICAL · GitHub CVSS 9.6
  5. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  6. 2026-11-01 07:54 UTCGHSA enrichmentGHSA-wfv2-pwc8-crg5 · GitHub severity CRITICAL · GitHub CVSS 9.6
  7. 2026-11-01 07:54 UTCEG score recompute▲ 3.50
  8. 2026-10-31 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  9. 2026-10-30 22:25 UTCOSV refresh
  10. 2026-10-30 16:34 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  11. 2026-10-29 16:33 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  12. 2026-10-28 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  13. 2026-10-27 16:31 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  14. 2026-10-26 16:31 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  15. 2026-10-25 16:32 UTCEPSS rescoreEPSS 0.3% · 19th percentile
  16. 2026-10-25 14:36 UTCEG score recompute
  17. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  18. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  19. 2026-10-23 03:48 UTCEG score recompute
  20. 2026-10-23 03:48 UTCVendor advisory
  21. 2026-10-22 16:34 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  22. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.4% · 35th percentile
  23. 2026-10-20 16:33 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  24. 2026-10-20 00:25 UTCOSV refresh
  25. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.4% · 34th percentile
Show 70 more
  1. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  2. 2026-10-18 03:48 UTCEG score recompute
  3. 2026-10-17 16:34 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  4. 2026-10-16 16:41 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  5. 2026-10-15 16:32 UTCEPSS rescoreEPSS 0.4% · 34th percentile
  6. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  7. 2026-10-13 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  8. 2026-10-12 16:34 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  9. 2026-10-12 16:14 UTCEG score recompute
  10. 2026-10-11 19:57 UTCEG score recompute
  11. 2026-10-11 17:10 UTCEG score recompute
  12. 2026-10-11 14:38 UTCEG score recompute
  13. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  14. 2026-10-10 20:00 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  15. 2026-10-09 20:07 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  16. 2026-10-08 17:12 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  17. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  18. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  19. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  20. 2026-10-04 23:22 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  21. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  22. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  23. 2026-09-30 15:03 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  24. 2026-09-28 13:51 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  25. 2026-09-27 04:45 UTCOSV refresh
  26. 2026-09-26 15:58 UTCEPSS rescoreEPSS 0.4% · 32nd percentile
  27. 2026-09-26 00:26 UTCEPSS rescoreEPSS 0.4% · 31st percentile
  28. 2026-09-20 20:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  29. 2026-09-18 19:27 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  30. 2026-09-17 19:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  31. 2026-09-16 14:08 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  32. 2026-09-16 05:15 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  33. 2026-09-13 16:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  34. 2026-09-12 15:01 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  35. 2026-09-11 14:52 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  36. 2026-09-10 09:34 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  37. 2026-09-08 22:00 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  38. 2026-09-07 14:01 UTCEG score recompute
  39. 2026-09-07 14:01 UTCVendor advisory
  40. 2026-09-06 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  41. 2026-09-04 05:06 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  42. 2026-09-02 14:11 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  43. 2026-09-01 13:53 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  44. 2026-09-01 04:39 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  45. 2026-08-30 19:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  46. 2026-08-30 01:22 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  47. 2026-08-28 21:41 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  48. 2026-08-27 14:25 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  49. 2026-08-26 14:46 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  50. 2026-08-25 13:49 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  51. 2026-08-24 14:17 UTCEPSS rescoreEPSS 0.3% · 17th percentile
  52. 2026-08-24 12:27 UTCEG score recompute
  53. 2026-08-24 12:27 UTCVendor advisory
  54. 2026-08-23 00:19 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  55. 2026-08-21 23:49 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  56. 2026-08-20 22:55 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  57. 2026-08-19 17:03 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  58. 2026-08-18 13:48 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  59. 2026-08-18 12:21 UTCEG score recompute
  60. 2026-08-18 12:21 UTCVendor advisory
  61. 2026-08-17 13:47 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  62. 2026-08-17 12:21 UTCVendor advisory
  63. 2026-08-17 12:13 UTCEG score recompute
  64. 2026-08-17 12:13 UTCVendor advisory
  65. 2026-08-16 14:56 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  66. 2026-08-16 11:18 UTCEG score recompute
  67. 2026-08-16 11:18 UTCVendor advisory
  68. 2026-08-16 02:14 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  69. 2026-08-15 01:30 UTCEPSS rescoreEPSS 0.3% · 18th percentile
  70. 2026-08-14 07:26 UTCEG score recompute

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-31938?
CVE-2026-31938 is a critical-severity vulnerability; its CVE record was published on March 18, 2026. jsPDF is a library to generate PDFs in JavaScript. Prior to version 4.2.1, user control of the options argument of the output function allows attackers to inject arbitrary HTML (such as scripts) into the browser context the created PDF is opened in. The vulnerability can be exploited in the…
When was the CVE record for CVE-2026-31938 published?
The CVE record for CVE-2026-31938 was published on March 18, 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 September 7, 2026; the record at its source may have been updated since.
Is CVE-2026-31938 actively exploited?
CVE-2026-31938 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.3% probability of exploitation in the next 30 days (19th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-31938?
CVE-2026-31938 has a CVSS v3 base score of 6.1 (NVD). EchelonGraph synthesises NVD + FIRST EPSS + GHSA into a combined EG score of 9.6 (CRITICAL).
How do I remediate CVE-2026-31938?
A fix for CVE-2026-31938 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-31938 are linked in the Vendor Advisories panel on this page.

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