CVE-2025-26240

HIGHPre-NVD 8.48.4—
EchelonGraph scoreMEDIUM confidence

Score 8.4 from GitHub Security Advisory (severity: HIGH) published 2026-06-17. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 8.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
8.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.4Exploit: None knownExposed: 0

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

In JazzCore python-pdfkit 1.0.0, the from_string method enables the execution of JavaScript code within the context of the server application and the exfiltration of local files.

CVSS v3
8.4
EG Score
8.4(medium)
EG Risk
42(Track)
EG Risk 42/100SSVC: Track

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
Severity84% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
32%
KEV
Not listed

Published

June 17, 2026

Last Modified

June 22, 2026

Advisory Details (2)

Auto-updated Jun 20, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

The pdfkit vulnerability (CVE-2025-26240) | Habuon’s Blog

https://habuon.github.io/2025/03/12/pdfkit-vulnerability-%28CVE-2025-26240%29.html
generic

The Python Pdfkit Library Vulnerability | CSIRT.SK

https://www.csirt.gov.sk/the-python-pdfkit-library-vulnerability.html

Vendor Advisories for CVE-2025-26240(1)

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

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
pippdfkit—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

(3 across 3 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pdfkit0.6.1-2 ... 1.0.0-5 (6 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pdfkit1.0.0-2, 1.0.0-3, 1.0.0-4, 1.0.0-5——
PyPI(1)
PackageVulnerable rangeFixed inDependents
pdfkit0.2.3 ... 1.0.0 (9 versions)——

Weakness Classification(2)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 92× 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 218 total refreshes for this CVE.

  1. 2026-08-27 14:24 UTCEPSS rescore
  2. 2026-08-25 13:47 UTCEPSS rescore
  3. 2026-08-24 22:24 UTCEG score recompute
  4. 2026-08-24 22:24 UTCGHSA enrichment
  5. 2026-08-24 06:51 UTCGHSA enrichment
  6. 2026-08-23 16:20 UTCGHSA enrichment
  7. 2026-08-23 04:19 UTCEG score recompute
  8. 2026-08-23 04:19 UTCGHSA enrichment
  9. 2026-08-23 00:18 UTCEPSS rescore
  10. 2026-08-21 23:48 UTCEPSS rescore
  11. 2026-08-21 19:38 UTCGHSA enrichment
  12. 2026-08-21 07:54 UTCEG score recompute
  13. 2026-08-21 07:54 UTCGHSA enrichment
  14. 2026-08-20 22:54 UTCEPSS rescore
  15. 2026-08-20 20:08 UTCGHSA enrichment
  16. 2026-08-20 08:14 UTCEG score recompute
  17. 2026-08-20 08:14 UTCGHSA enrichment
  18. 2026-08-19 17:03 UTCEPSS rescore
  19. 2026-08-19 08:10 UTCEG score recompute
  20. 2026-08-19 08:10 UTCGHSA enrichment
  21. 2026-08-18 13:47 UTCEPSS rescore
  22. 2026-08-17 13:46 UTCEPSS rescore
  23. 2026-08-17 08:44 UTCGHSA enrichment
  24. 2026-08-16 21:01 UTCEG score recompute
  25. 2026-08-16 21:01 UTCGHSA enrichment
Show 75 more
  1. 2026-08-16 14:55 UTCEPSS rescore
  2. 2026-08-16 09:14 UTCEG score recompute
  3. 2026-08-16 09:14 UTCGHSA enrichment
  4. 2026-08-16 02:13 UTCEPSS rescore
  5. 2026-08-16 02:13 UTCEPSS rescore
  6. 2026-08-15 21:31 UTCGHSA enrichment
  7. 2026-08-15 09:15 UTCEG score recompute
  8. 2026-08-15 09:15 UTCGHSA enrichment
  9. 2026-08-15 01:29 UTCEPSS rescore
  10. 2026-08-14 18:33 UTCGHSA enrichment
  11. 2026-08-14 06:50 UTCEG score recompute
  12. 2026-08-14 06:50 UTCGHSA enrichment
  13. 2026-08-13 21:59 UTCEPSS rescore
  14. 2026-08-13 19:06 UTCGHSA enrichment
  15. 2026-08-13 04:22 UTCGHSA enrichment
  16. 2026-08-12 16:38 UTCEG score recompute
  17. 2026-08-12 16:38 UTCGHSA enrichment
  18. 2026-08-12 13:50 UTCEPSS rescore
  19. 2026-08-12 04:53 UTCGHSA enrichment
  20. 2026-08-11 17:02 UTCEG score recompute
  21. 2026-08-11 17:02 UTCGHSA enrichment
  22. 2026-08-11 05:17 UTCEG score recompute
  23. 2026-08-11 05:17 UTCGHSA enrichment
  24. 2026-08-10 23:59 UTCEPSS rescore
  25. 2026-08-10 17:33 UTCGHSA enrichment
  26. 2026-08-10 03:52 UTCGHSA enrichment
  27. 2026-08-09 16:08 UTCEG score recompute
  28. 2026-08-09 16:08 UTCGHSA enrichment
  29. 2026-08-09 13:45 UTCEPSS rescore
  30. 2026-08-09 04:25 UTCGHSA enrichment
  31. 2026-08-08 16:41 UTCEG score recompute
  32. 2026-08-08 16:41 UTCGHSA enrichment
  33. 2026-08-08 04:57 UTCGHSA enrichment
  34. 2026-08-07 17:14 UTCEG score recompute
  35. 2026-08-07 17:14 UTCGHSA enrichment
  36. 2026-08-07 16:26 UTCEPSS rescore
  37. 2026-08-07 05:30 UTCGHSA enrichment
  38. 2026-08-06 17:46 UTCEG score recompute
  39. 2026-08-06 17:46 UTCGHSA enrichment
  40. 2026-08-06 13:46 UTCEPSS rescore
  41. 2026-08-06 06:02 UTCEG score recompute
  42. 2026-08-06 06:02 UTCGHSA enrichment
  43. 2026-08-05 19:16 UTCEPSS rescore
  44. 2026-08-05 18:18 UTCGHSA enrichment
  45. 2026-08-05 03:49 UTCGHSA enrichment
  46. 2026-08-04 15:26 UTCEG score recompute
  47. 2026-08-04 15:26 UTCGHSA enrichment
  48. 2026-08-04 15:09 UTCEPSS rescore
  49. 2026-08-04 10:37 UTCEPSS rescore
  50. 2026-08-03 21:21 UTCGHSA enrichment
  51. 2026-08-03 09:37 UTCGHSA enrichment
  52. 2026-08-02 21:29 UTCGHSA enrichment
  53. 2026-08-02 09:45 UTCEG score recompute
  54. 2026-08-02 09:45 UTCGHSA enrichment
  55. 2026-08-02 02:25 UTCEPSS rescore
  56. 2026-08-01 22:02 UTCGHSA enrichment
  57. 2026-08-01 10:18 UTCEG score recompute
  58. 2026-08-01 10:18 UTCGHSA enrichment
  59. 2026-08-01 04:15 UTCEPSS rescore
  60. 2026-07-31 22:33 UTCGHSA enrichment
  61. 2026-07-31 10:23 UTCGHSA enrichment
  62. 2026-07-30 22:39 UTCEG score recompute
  63. 2026-07-30 22:39 UTCGHSA enrichment
  64. 2026-07-30 16:27 UTCEPSS rescore
  65. 2026-07-30 03:38 UTCEG score recompute
  66. 2026-07-30 03:38 UTCGHSA enrichment
  67. 2026-07-30 01:29 UTCEPSS rescore
  68. 2026-07-29 13:53 UTCGHSA enrichment
  69. 2026-07-29 02:09 UTCEG score recompute
  70. 2026-07-29 02:08 UTCGHSA enrichment
  71. 2026-07-28 15:35 UTCEPSS rescore
  72. 2026-07-28 01:14 UTCEG score recompute
  73. 2026-07-28 01:14 UTCGHSA enrichment
  74. 2026-07-27 14:12 UTCEPSS rescore
  75. 2026-07-27 07:08 UTCGHSA enrichment

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2025-26240?
CVE-2025-26240 is a high vulnerability published on June 17, 2026. In JazzCore python-pdfkit 1.0.0, the from_string method enables the execution of JavaScript code within the context of the server application and the exfiltration of local files.
When was CVE-2025-26240 disclosed?
CVE-2025-26240 was first published in the National Vulnerability Database on June 17, 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-2025-26240 actively exploited?
CVE-2025-26240 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 67.9% of all scored CVEs.
What is the CVSS score of CVE-2025-26240?
CVE-2025-26240 has a CVSS v3.1 base score of 8.4 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2025-26240?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2025-26240, 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.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2025-26240

Explore →

Is Your Infrastructure Affected by CVE-2025-26240?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs