CVE-2026-54059

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under a secondary CVSS source (NVD's own analysis pending). EPSS exploit probability: 0.4%, top 65% of all CVEs by exploit prediction. 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, secondary
Trending — 3 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

A fix is available — apply it.

Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py _load_bitmaps() read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling Image._decompression_bomb_check(), allowing crafted PCF font data to cause excessive memory allocation. This issue is fixed in version 12.3.0.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

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
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
35%
KEV
Not listed

Published

July 6, 2026

Last Modified

July 7, 2026

Advisory Details (3)

Auto-updated Jul 7, 2026
🔬 Proof of concept available. Patch available. Sources: github, github_commit.
github Patch Available🟡 PoC Available

PcfFontFile._load_bitmaps()`: `Image.frombytes()` called without `_decompression_bomb_check()` — bomb protection bypass via PCF font loading · Advisory · python-pillow/Pillow · GitHub

https://github.com/python-pillow/Pillow/security/advisories/GHSA-8v84-f9pq-wr9x
github_commit Patch Available

commit 0a263e6264aa (python-pillow/Pillow)

Patch available: python-pillow/Pillow 12.3.0 (contains commit 0a263e6264aa)

https://github.com/python-pillow/Pillow/commit/0a263e6264aa5399988d9acd3bbfbca2ca3ec77d
generic

Pillow/docs/releasenotes/12.3.0.rst at main · python-pillow/Pillow · GitHub

https://github.com/python-pillow/Pillow/blob/main/docs/releasenotes/12.3.0.rst

Vendor Advisories for CVE-2026-54059(11)

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

Patch Availability(7)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatpython-pillow-0:5.1.1-15.el8_4.22026-08-10redhat
redhatpython3.12-pillow-0:12.3.0-1.el9ap2026-08-04redhat
redhatpython-pillow-0:12.3.0-1.el9pc2026-08-04redhat
redhatpython3.12-pillow-0:12.3.0-1.el9pc2026-08-04redhat
redhatpython-pillow-0:5.1.1-20.el8_62026-07-31redhat
redhatpython-pillow-0:5.1.1-20.el8_82026-07-31redhat
redhatpython-pillow-0:5.1.1-22.el8_102026-07-14redhat

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

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
pillow10.0.0-1 ... 9.5.0-1 (38 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
pillow10.0.0-1 ... 9.5.0-1 (23 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
pillow11.1.0-5 ... 12.3.0-1 (13 versions)——
Debian:14(1)
PackageVulnerable rangeFixed inDependents
pillow11.1.0-5 ... 12.2.0-1 (8 versions)12.3.0-1—
PyPI(1)
PackageVulnerable rangeFixed inDependents
pillow1.0 ... 9.5.0 (106 versions)12.3.0—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 14× in last 7d / 61× 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 196 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-54059?
CVE-2026-54059 is a high vulnerability published on July 6, 2026. Pillow is a Python imaging library. Prior to 12.3.0, PIL/PcfFontFile.py loadbitmaps() read glyph dimensions from the PCF METRICS section and passed them directly to Image.frombytes() without calling Image.decompressionbomb_check(), allowing crafted PCF font data to cause excessive memory…
When was CVE-2026-54059 disclosed?
CVE-2026-54059 was first published in the National Vulnerability Database on July 6, 2026, with the most recent update on July 7, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-54059 actively exploited?
CVE-2026-54059 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 65.1% of all scored CVEs.
What is the CVSS score of CVE-2026-54059?
CVE-2026-54059 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-54059?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-54059, 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

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