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CVE-2026-91986

gitoxide gix-transport before 0.59.2 CR/LF/NUL Injection

5.3 MediumFix available

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
Passive

What an attacker can affect

Confidentiality
Low
Integrity
Low
Availability
None

Exploit likelihood

0.23%Unchanged since Sep 16, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.3

gitoxide gix-transport before 0.59.2 CR/LF/NUL Injection

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
CVE-2026-91986
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-74
Updated
2026-11-02
EUVDEUVD-2026-78657 5.3

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
EUVD-2026-78657
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-7849-h6h3-vww8 5.3

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect...

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
GHSA-7849-h6h3-vww8
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-74
Updated
2026-11-02
NVD 5.3

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
CVE-2026-91986
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Weakness
CWE-74
Updated
2026-11-02
OSV 5.3

gitoxide gix-transport before 0.59.2 CR/LF/NUL Injection

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
CVE-2026-91986
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
Weakness
CWE-74
Updated
2026-11-02
OSVDEBIAN-CVE-2026-91986 5.3

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
DEBIAN-CVE-2026-91986
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Updated
2026-11-02
Show 9 moreShow less
OSVUBUNTU-CVE-2026-91986 5.3

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
UBUNTU-CVE-2026-91986
CVSS 4.0
5.3 MediumCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N
CVSS 3.1
5.4 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N
Updated
2026-11-02
OSVAZL-103263 No score

CVE-2026-91986 affecting package rust 1.75.0-31

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
AZL-103263
Updated
2026-11-05
OSVAZL-103266 No score

CVE-2026-91986 affecting package rust 1.98.1-1

gitoxide gix-transport before 0.59.2 fails to filter control characters in git-daemon connect requests, allowing attackers to inject NUL/CR/LF bytes via crafted git URLs. Attackers can inject extra NUL-delimited protocol fields to spoof virtual hosts or inject newlines into daemon requests and logs.

Record
AZL-103266
Updated
2026-11-05
OSVopenSUSE-SU-2026:11857-1 No score

gitoxide-0.58.0-2.1 on GA media

These are all security issues fixed in the gitoxide-0.58.0-2.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11857-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:11923-1 No score

openai-codex-0.158.0-1.1 on GA media

These are all security issues fixed in the openai-codex-0.158.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:11923-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:12223-1 No score

stgit-2.7.0-1.1 on GA media

These are all security issues fixed in the stgit-2.7.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12223-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:21955-1 No score

Security update for gitoxide

This update for gitoxide fixes the following issues:

Changes in gitoxide:

  • CVE-2026-91986: gix-transport CR/LF/NUL injection into git-daemon connect request via crafted git URL path, allowing virtual-host spoofing (boo#1281749)
Record
openSUSE-SU-2026:21955-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:22126-1 No score

Security update for gitoxide

This update for gitoxide fixes the following issues:

Changes in gitoxide:

Update to version 0.60.0:

  • BREAKING: remove the full-screen progress mode: the --progress and --progress-keep-open flags and the prodash-render-tui feature are gone, line progress stays the only progress UI
  • Trace output is now independently configurable with a bounded -t/--trace counter, separate from verbose and progress rendering
  • Add gix worktree add (alias create) and worktree remove
  • Various security improvements and more consistent error handling across the plumbing crates
  • Refresh the vendored dependencies. The linked graph still carries MPL-2.0 only (uluru, option-ext); the License tag is unchanged.

  • Restore the explicit prodash feature dropped in the gix-utils 0.5.0 dep: migration, which broke workspace-wide cargo metadata --features as run by cargo-auditable.

Update to version 0.59.0:

  • Ships gix-transport 0.60.0, which rejects NUL/LF in git-daemon connect requests: drops the backported fix for CVE-2026-91986 (boo#1281749), now fixed upstream
    • gix-transport-reject-control-bytes.patch
  • New gix editor command with Git-compatible selection
  • Raise the Rust floor to 1.88 (upstream MSRV, dua-core)
  • Refresh the vendored dependencies. The linked graph still carries MPL-2.0 only (uluru, option-ext); the License tag is unchanged.

Update to 0.58.0:

  • gix tix is now the full gix-tix platform embedded in the plumbing command instead of a second parser and dispatcher, so standalone and plumbing invocations behave alike and amend and spill are reachable through gix tix
  • tix decorates commits checked out by other main or linked worktrees with light-blue name@ labels, keeps the marker for the checkout it was opened from, and watches linked HEAD and worktree membership so the decorations stay current
  • tix gained -w/--worktrees to add every resolved worktree HEAD to the traversal tips without weakening hidden-revision exclusions
  • gix tix no longer accepts --screen: the interactive history always owns the alternate screen, so the automatic and half-screen modes were removed
  • Refresh the vendored dependencies. The linked graph gains a second MPL-2.0 crate, option-ext, reached through the directories and dirs-sys crates that gix-tix newly depends on; the License tag already covers MPL-2.0 and is unchanged.

Update to 0.57.0:

  • Add gix clone --revision, and PrepareFetch::with_revision(), for cloning a single revision named by a full ref, HEAD or a full object id: HEAD is detached to the fetched commit, no ordinary refs are created, no fetch refspec is persisted and tag following is disabled
  • Fix a panic when a full object id was passed to with_ref_name(), which produced an object-id refspec mapping that clone expected to be named
  • Rewrite relative date parsing to follow git: several count and unit pairs are applied in input order, as in "2 days 3 hours ago", counts may be spelled out, any non-alphanumeric byte separates the parts, the trailing "ago" is optional, and a leading "@" may introduce a timestamp. Month and year steps now walk the calendar fields, so a day past the end of the shorter target month rolls over into the following month
  • gix commit verify now checks signatures through the library rather than spawning gpg itself, so the configured gpg program is honoured and an invalid or untrusted signature is reported as such
  • Fix the conflict stage labels printed by gix revision explain, which called stage 0 "base"; they are now unconflicted, base, ours and theirs
  • Reject a TREE index extension whose child entry counts overflow instead of wrapping while verifying them
  • Replace the jwalk directory walker with dua-core
  • Refresh the vendored dependencies. The licence set is unchanged: re-derived over the new vendor tree, uluru (MPL-2.0) is…
Record
openSUSE-SU-2026:22126-1
Updated
2026-11-02
OSVopenSUSE-SU-2026:22204-1 No score

Security update for stgit

This update for stgit fixes the following issues:

Changes in stgit:

  • Update to version 2.7.0:
    • Allow unambiguous command shorthands, opt-in with stgit.infer-commands.
    • Accept git approxidate spellings for dates, e.g. "2 days ago" and "@<epoch>"; relative dates are now anchored in the local time zone.
    • Run git mergetool for stg push with stgit.autoimerge.
    • Reject "@" as a branch name for stg branch --create.
    • Bump gix to 0.89 and MSRV to 1.88.
    • CVE-2026-91986: gix-transport CR/LF/NUL injection into git-daemon connect request via crafted git URL path (boo#1281742).
    • CVE-2026-109349, CVE-2026-109350, CVE-2026-109351: gix-pack denial of service via pack version 3 header, ofs-delta base distance and pack header object count (boo#1285176).
Record
openSUSE-SU-2026:22204-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
rust
Azure Linux:3
through 1.75.0-31 None known
rust
Azure Linux:3
1.85.0 to 1.98.1-1 None known
rust-gix-transport
Debian:13
All versions, plus listed versions
0.44.0-10.48.0-10.48.0-20.57.0-10.58.1-10.59.2-1
None known
rust-gix-transport
Debian:14
All versions, plus listed versions
0.44.0-10.48.0-10.48.0-20.57.0-10.58.1-10.59.2-1
None known
rust-gix-transport
Ubuntu:24.04:LTS
All versions, plus listed versions
0.41.1-10.41.1-1build1
None known
rust-gix-transport
Ubuntu:26.10
All versions, plus listed versions
0.48.0-10.57.0-1
None known
rust-gix-transport
Ubuntu:26.04:LTS
All versions, plus listed versions
0.44.0-10.48.0-1
None known
gitoxide
openSUSE:Tumbleweed
before 0.58.0-2.1
0.58.0-2.1
openai-codex
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
before 0.158.0-1.1
0.158.0-1.1
stgit
openSUSE:Tumbleweed
From an advisory covering 2 CVEs
before 2.7.0-1.1
2.7.0-1.1
gitoxide
openSUSE:Leap 16.0
before 0.56.0-bp160.2.1
0.56.0-bp160.2.1
gitoxide
openSUSE:Leap 16.0
before 0.60.0-bp160.1.1
0.60.0-bp160.1.1
stgit
openSUSE:Leap 16.0
From an advisory covering 4 CVEs
before 2.7.0-bp160.1.1
2.7.0-bp160.1.1

History

History
RecordedChangedSources
affected
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-91986 is a medium vulnerability (CVSS 5.3) in Gitoxidelabs Gitoxide, published September 15, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.23%, the 13th percentile. Fixed in gitoxide 0.58.0-2.1.

References

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Left out here: the rest of 1 source description. The JSON record has them.

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