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Vulnerability record · CVE-2018-10888 · published 10 July 2018

CVE-2018-10888: Libgit2 improper input validation vulnerability

Libgit2 · Libgit2

A flaw was found in libgit2 before version 0.27.3. A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service.

6.5 CVSS 3.1 Medium EPSS 1.8% · top 21.8% CWE-20 · Improper input validationCWE-125 · Out-of-bounds read
6.5CVSS 3.1 base score, v2 4.3
1.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
10References
17 Jun 2026Last modified by NVD

Description

A flaw was found in libgit2 before version 0.27.3. A missing check in git_delta_apply function in delta.c file, may lead to an out-of-bound read while reading a binary delta file. An attacker may use this flaw to cause a Denial of Service.

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://bugzilla.redhat.com/show_bug.cgi?id=1598024 Issue TrackingPatchThird Party Advisory
https://github.com/libgit2/libgit2/commit/9844d38bed10e9ff17174434b3421b227ae710f3 PatchThird Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.3 PatchRelease NotesThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html Mailing ListThird Party Advisory
https://bugzilla.redhat.com/show_bug.cgi?id=1598024 Issue TrackingPatchThird Party Advisory
https://github.com/libgit2/libgit2/commit/9844d38bed10e9ff17174434b3421b227ae710f3 PatchThird Party Advisory
https://github.com/libgit2/libgit2/releases/tag/v0.27.3 PatchRelease NotesThird Party Advisory
https://lists.debian.org/debian-lts-announce/2018/08/msg00024.html Mailing ListThird Party Advisory
https://lists.debian.org/debian-lts-announce/2022/03/msg00031.html Mailing ListThird Party Advisory

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Source: NIST National Vulnerability Database (record CVE-2018-10888), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.