CVE-2026-34657

MEDIUMPre-NVD 5.55.5—
EchelonGraph scoreMEDIUM confidence

Score 5.5 from GitHub Security Advisory published 2026-06-10. a secondary CVSS source baseline 5.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.5EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.5Exploit: None knownExposed: 0

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

CAI Content Credentials versions [email protected], c2pa-v0.80.1 and earlier are affected by an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability that could result in an arbitrary file system write. An attacker could leverage this vulnerability to write to unauthorized files or directories outside of intended restrictions. Exploitation of this issue requires user interaction in that a victim must extract a maliciously crafted file.

CVSS v3
5.5
EG Score
5.5(medium)
EG Risk
25(Track)
EG Risk 25/100SSVC: 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
Severity55% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
8%
KEV
Not listed

Published

June 9, 2026

Last Modified

August 28, 2026

References (1)

Vendor Advisories for CVE-2026-34657(1)

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

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 9× in last 7d / 46× 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 212 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-34657?
CVE-2026-34657 is a medium vulnerability published on June 9, 2026. CAI Content Credentials versions [email protected], c2pa-v0.80.1 and earlier are affected by an Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') vulnerability that could result in an arbitrary file system write. An attacker could leverage this vulnerability to write to…
When was CVE-2026-34657 disclosed?
CVE-2026-34657 was first published in the National Vulnerability Database on June 9, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-34657 actively exploited?
CVE-2026-34657 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 92.4% of all scored CVEs.
What is the CVSS score of CVE-2026-34657?
CVE-2026-34657 has a CVSS v3 base score of 5.5 (NVD).
How do I remediate CVE-2026-34657?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-34657, 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.

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