CVE-2026-71852

LOWNVD 3.33.3—
EchelonGraph scoreMEDIUM confidence

This low-severity CVE scores 3.3 under NVD CVSS v3. EPSS exploit probability: 0.2% (7th percentile of EPSS-scored CVEs). 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, nvd
Trending — 3 sources updated this week
3.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0.1%CVSS: 3.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/_font.py function Font._collect_cid_character_widths expands unusually large CID font /W width ranges or excessive width entries during text extraction. This issue is fixed in 6.15.0.

CVSS v3
3.3
EG Score
3.3LOWmedium confidence
EG Risk
15
EG Risk 15/100CISA SSVC

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
Severity33% × 45%
Exploitation0% × 40%
Automatability0% × 15%
CISA SSVC: Track at every mission impact level.
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.1%
EPSS %ILE
1st
KEV
Not listed

CISA SSVCTrack at every mission impact level.

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

Exploitation none (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 7, 2026

Last Modified

October 5, 2026

Advisory Details (4)

Auto-updated Aug 7, 2026
Patch available. Sources: github_commit, github_pr, github_release, github.
githubMentions a patch (unverified)

Possible long runtimes/large memory usage for large CID font width ranges · Advisory · py-pdf/pypdf · GitHub

https://github.com/py-pdf/pypdf/security/advisories/GHSA-fwg2-594c-jp42
github_release Patch Available

Version 6.15.0, 2026-08-06

Patch available: py-pdf/pypdf 6.15.0

https://github.com/py-pdf/pypdf/releases/tag/6.15.0
github_pr Patch Available

SEC: Limit CID width range and width count when loading fonts

Patch available: py-pdf/pypdf 6.15.0 (PR #3946 merged 2026-08-06)

https://github.com/py-pdf/pypdf/pull/3946
github_commit Patch Available

commit 51cb6acf9e8a (py-pdf/pypdf)

Patch available: py-pdf/pypdf 6.15.0 (contains commit 51cb6acf9e8a)

https://github.com/py-pdf/pypdf/commit/51cb6acf9e8a35b77e90b4d87d28fe3e1416d7d7

Vendor Advisories for CVE-2026-71852(1)

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

Affected Packages

(6 across 5 ecosystems)
Debian:12(2)
PackageVulnerable rangeFix by version rangeDependents
pypdf3.17.4-1 ... 6.9.2-2 (15 versions)
  • every version on: no fix on record
—
pypdf22.12.1-3, 2.12.1-3+deb12u1, 2.12.1-4
  • every version on: no fix on record
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
pypdf21.26.0-4 ... 2.9.0-1 (24 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
pypdf5.4.0-1, 6.19.0-1, 6.9.0-1, 6.9.2-1, 6.9.2-2
  • every version on: no fix on record
—
Debian:14(1)
PackageVulnerable rangeFix by version rangeDependents
pypdf5.4.0-1, 6.9.0-1, 6.9.2-1, 6.9.2-2
  • every version up to 6.19.0-1: fixed in 6.19.0-1
—
PyPI(1)
PackageVulnerable rangeFix by version rangeDependents
pypdf1.0 ... 6.9.2 (112 versions)
  • every version up to 6.15.0: fixed in 6.15.0
—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 11× in last 7d / 44× 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 103 total refreshes for this CVE.

  1. 2026-10-09 20:07 UTCEPSS rescore
  2. 2026-10-08 17:13 UTCEPSS rescore
  3. 2026-10-07 23:48 UTCEPSS rescore
  4. 2026-10-06 15:18 UTCEPSS rescore
  5. 2026-10-05 17:43 UTCEPSS rescore
  6. 2026-10-05 17:40 UTCEG score recompute▼ 1.50
  7. 2026-10-05 17:40 UTCNVD updateCVSS v3 → 3.3 · severity → LOW
  8. 2026-10-05 08:13 UTCEG score recompute
  9. 2026-10-04 23:22 UTCEPSS rescore
  10. 2026-10-04 05:42 UTCEG score recompute
  11. 2026-10-03 14:26 UTCEPSS rescore
  12. 2026-10-02 09:32 UTCEG score recompute
  13. 2026-10-01 19:50 UTCEPSS rescore
  14. 2026-09-30 22:54 UTCEG score recompute
  15. 2026-09-30 15:03 UTCEPSS rescore
  16. 2026-09-29 05:45 UTCEG score recompute
  17. 2026-09-28 13:52 UTCEPSS rescore
  18. 2026-09-27 17:08 UTCEG score recompute
  19. 2026-09-27 13:48 UTCEPSS rescore
  20. 2026-09-26 15:59 UTCEPSS rescore
  21. 2026-09-25 06:28 UTCEG score recompute
  22. 2026-09-24 04:34 UTCEG score recompute
  23. 2026-09-23 17:54 UTCEPSS rescore
  24. 2026-09-23 02:38 UTCEG score recompute
  25. 2026-09-22 00:44 UTCEG score recompute
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  1. 2026-09-21 21:09 UTCEPSS rescore
  2. 2026-09-20 22:50 UTCEG score recompute
  3. 2026-09-20 20:16 UTCEPSS rescore
  4. 2026-09-19 20:11 UTCEG score recompute
  5. 2026-09-18 19:28 UTCEPSS rescore
  6. 2026-09-18 17:33 UTCEG score recompute
  7. 2026-09-17 15:10 UTCEG score recompute
  8. 2026-09-16 14:08 UTCEPSS rescore
  9. 2026-09-16 11:08 UTCEG score recompute
  10. 2026-09-16 05:15 UTCEPSS rescore
  11. 2026-09-15 06:34 UTCEG score recompute
  12. 2026-09-15 03:12 UTCEPSS rescore
  13. 2026-09-14 03:50 UTCEG score recompute
  14. 2026-09-13 01:57 UTCEG score recompute
  15. 2026-09-12 15:02 UTCEPSS rescore
  16. 2026-09-12 00:03 UTCEG score recompute
  17. 2026-09-11 14:53 UTCEPSS rescore
  18. 2026-09-10 20:38 UTCEG score recompute
  19. 2026-09-10 09:35 UTCEPSS rescore
  20. 2026-09-09 06:00 UTCEG score recompute
  21. 2026-09-08 22:01 UTCEPSS rescore
  22. 2026-09-07 17:43 UTCEG score recompute
  23. 2026-09-06 13:48 UTCEPSS rescore
  24. 2026-09-06 12:52 UTCEG score recompute
  25. 2026-09-05 10:59 UTCEG score recompute
  26. 2026-09-04 09:02 UTCEG score recompute
  27. 2026-09-04 05:07 UTCEPSS rescore
  28. 2026-09-03 05:59 UTCEG score recompute
  29. 2026-09-02 14:12 UTCEPSS rescore
  30. 2026-09-02 00:47 UTCEG score recompute
  31. 2026-09-01 13:54 UTCEPSS rescore
  32. 2026-09-01 04:40 UTCEPSS rescore
  33. 2026-08-31 22:27 UTCEG score recompute
  34. 2026-08-30 19:17 UTCEPSS rescore
  35. 2026-08-30 12:16 UTCEG score recompute
  36. 2026-08-30 01:22 UTCEPSS rescore
  37. 2026-08-29 10:22 UTCEG score recompute
  38. 2026-08-28 21:42 UTCEPSS rescore
  39. 2026-08-27 20:52 UTCEG score recompute
  40. 2026-08-26 18:59 UTCEG score recompute
  41. 2026-08-26 14:47 UTCEPSS rescore
  42. 2026-08-25 16:00 UTCEG score recompute
  43. 2026-08-25 13:49 UTCEPSS rescore
  44. 2026-08-24 14:07 UTCEG score recompute
  45. 2026-08-23 12:12 UTCEG score recompute
  46. 2026-08-23 00:19 UTCEPSS rescore
  47. 2026-08-22 10:18 UTCEG score recompute
  48. 2026-08-21 23:49 UTCEPSS rescore
  49. 2026-08-21 08:25 UTCEG score recompute
  50. 2026-08-20 22:56 UTCEPSS rescore
  51. 2026-08-20 06:31 UTCEG score recompute
  52. 2026-08-19 17:04 UTCEPSS rescore
  53. 2026-08-19 04:37 UTCEG score recompute
  54. 2026-08-18 13:49 UTCEPSS rescore
  55. 2026-08-18 13:49 UTCEPSS rescore
  56. 2026-08-18 02:43 UTCEG score recompute
  57. 2026-08-17 13:47 UTCEPSS rescore
  58. 2026-08-17 00:50 UTCEG score recompute
  59. 2026-08-16 14:56 UTCEPSS rescore
  60. 2026-08-16 14:56 UTCEPSS rescore
  61. 2026-08-16 02:15 UTCEPSS rescore
  62. 2026-08-15 22:57 UTCEG score recompute
  63. 2026-08-15 01:31 UTCEPSS rescore
  64. 2026-08-14 21:03 UTCEG score recompute
  65. 2026-08-13 22:00 UTCEPSS rescore
  66. 2026-08-12 17:16 UTCEG score recompute
  67. 2026-08-12 13:51 UTCEPSS rescore
  68. 2026-08-11 15:22 UTCEG score recompute
  69. 2026-08-11 00:00 UTCEPSS rescore
  70. 2026-08-10 13:29 UTCEG score recompute
  71. 2026-08-10 12:24 UTCEG score recompute
  72. 2026-08-09 23:15 UTCEG score recompute
  73. 2026-08-09 13:47 UTCEPSS rescore
  74. 2026-08-08 21:22 UTCEG score recompute
  75. 2026-08-08 16:37 UTCEPSS rescore

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-71852?
CVE-2026-71852 is a low vulnerability published on August 7, 2026. pypdf is a free and open-source pure-python PDF library. Prior to 6.15.0, a crafted PDF can cause long runtimes and large memory consumption when pypdf/font.py function Font.collectcidcharacter_widths expands unusually large CID font /W width ranges or excessive width entries during text…
When was CVE-2026-71852 disclosed?
CVE-2026-71852 was first published on August 7, 2026, with the most recent update on October 5, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-71852 actively exploited?
CVE-2026-71852 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.1% probability of exploitation in the next 30 days (1st percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-71852?
CVE-2026-71852 has a CVSS v3 base score of 3.3 (NVD).
How do I remediate CVE-2026-71852?
A fix for CVE-2026-71852 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-71852 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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