CVE-2023-27534

HIGHNVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2023-03-30. NVD baseline CVSS 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
Trending — 4 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 2%CVSS: 8.8Exploit: Elevated riskExposed: 0

A fix is available — apply it.

A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers can exploit this flaw to bypass filtering or execute arbitrary code by crafting a path like /~2/foo while accessing a server with a specific user.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
2%
EPSS %ILE
82%
KEV
Not listed

Published

March 30, 2023

Last Modified

September 18, 2026

Advisory Details (5)

Auto-updated Aug 21, 2026
Patch available.
generic

NetApp Product Security

https://security.netapp.com/advisory/ntap-20230420-0012/
generic

curl: Multiple Vulnerabilities (GLSA 202310-12) — Gentoo security

https://security.gentoo.org/glsa/202310-12
generic

[SECURITY] Fedora 36 Update: curl-7.82.0-14.fc36 - package-announce - Fedora mailing-lists

https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/36NBD5YLJXXEDZLDGNFCERWRYJQ6LAQW/
generic Patch Available

[SECURITY] [DLA 3763-1] curl security update

https://lists.debian.org/debian-lts-announce/2024/03/msg00016.html
generic

HackerOne

https://hackerone.com/reports/1892351

Vendor Advisories for CVE-2023-27534(3)

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

Patch Availability(4)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntucurl (7.58.0-2ubuntu3.24) @ bionic2026-09-18ubuntu
redhatcurl-0:7.76.1-26.el92023-11-07redhat
redhatjbcs-httpd24-curl2023-06-05redhat
redhatjbcs-httpd24-curl-0:8.0.1-1.el7jbcs2023-06-05redhat

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

(16 across 16 ecosystems)
Alpine:v3.14(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.1-r0—
Alpine:v3.15(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.1-r0—
Alpine:v3.16(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.1-r0—
Alpine:v3.17(1)
PackageVulnerable rangeFixed inDependents
curl—7.88.1-r1—
Alpine:v3.18(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.19(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
curl—8.0.0-r0—
Debian:10(1)
PackageVulnerable rangeFixed inDependents
curl7.64.0-4 ... 7.64.0-4+deb10u8 (9 versions)7.64.0-4+deb10u9—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
curl7.74.0-1.3 ... 7.74.0-1.3+deb11u7~bpo11+1 (9 versions)7.74.0-1.3+deb11u8—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
curl—7.88.1-7—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
curl—7.88.1-7—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
curl—7.88.1-7—

Weakness Classification(1)

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

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 4× in last 7d / 26× 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 171 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2023-27534?
CVE-2023-27534 is a high vulnerability published on March 30, 2023. A path traversal vulnerability exists in curl <8.0.0 SFTP implementation causes the tilde (~) character to be wrongly replaced when used as a prefix in the first path element, in addition to its intended use as the first element to indicate a path relative to the user's home directory. Attackers…
When was CVE-2023-27534 disclosed?
CVE-2023-27534 was first published in the National Vulnerability Database on March 30, 2023, with the most recent update on September 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2023-27534 actively exploited?
CVE-2023-27534 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 2% probability of exploitation in the next 30 days, which ranks it in the top 18.3% of all scored CVEs.
What is the CVSS score of CVE-2023-27534?
CVE-2023-27534 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2023-27534?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2023-27534, 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-2023-27534

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