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4 vulnerabilities found for Data::ReqRep::Shared by EGOR
CVE-2026-65061 (GCVE-0-2026-65061)
Vulnerability from nvd – Published: 2026-07-21 19:07 – Updated: 2026-07-21 19:07
VLAI
EPSS
VEX
Title
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW
Summary
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
The segment is created in reqrep.h with open(path, O_RDWR | O_CREAT, 0666), for both the request-reply and the integer-variant segments. The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.
A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::ReqRep::Shared |
Affected:
0 , < 0.05
(custom)
|
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],
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"vendor": "EGOR",
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}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-732",
"description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-59",
"description": "CWE-59 Improper Link Resolution Before File Access",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
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"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"references": [
{
"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes"
}
],
"solutions": [
{
"lang": "en",
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}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW",
"workarounds": [
{
"lang": "en",
"value": "For deployments that cannot upgrade to 0.05, set a restrictive umask so the backing file is not world-readable and place it in a directory only the owning user can access."
}
],
"x_generator": {
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}
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"assignerShortName": "CPANSec",
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"datePublished": "2026-07-21T19:07:41.644Z",
"dateReserved": "2026-07-21T15:29:37.116Z",
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"state": "PUBLISHED"
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CVE-2026-59139 (GCVE-0-2026-59139)
Vulnerability from nvd – Published: 2026-07-21 19:02 – Updated: 2026-07-21 19:02
VLAI
EPSS
VEX
Title
Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked
Summary
Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.
The attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap).
A local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process.
Severity
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::ReqRep::Shared |
Affected:
0 , < 0.05
(custom)
|
{
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"cna": {
"affected": [
{
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"defaultStatus": "unaffected",
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"programFiles": [
"reqrep.h"
],
"programRoutines": [
{
"name": "reqrep_recv_locked"
}
],
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"vendor": "EGOR",
"versions": [
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}
],
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{
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{
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"lang": "en",
"type": "CWE"
}
]
}
],
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"dateUpdated": "2026-07-21T19:02:43.033Z",
"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"shortName": "CPANSec"
},
"references": [
{
"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"
},
{
"tags": [
"release-notes"
],
"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/changes"
}
],
"solutions": [
{
"lang": "en",
"value": "Upgrade to Data::ReqRep::Shared 0.05 or later, which bounds the arena offset and length against the arena capacity before the copy."
}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked",
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}
],
"x_generator": {
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}
}
},
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"assignerOrgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
"assignerShortName": "CPANSec",
"cveId": "CVE-2026-59139",
"datePublished": "2026-07-21T19:02:43.033Z",
"dateReserved": "2026-07-02T16:24:17.912Z",
"dateUpdated": "2026-07-21T19:02:43.033Z",
"state": "PUBLISHED"
},
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"dataVersion": "5.2"
}
CVE-2026-65061 (GCVE-0-2026-65061)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:07 – Updated: 2026-07-21 19:07
VLAI
EPSS
VEX
Title
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW
Summary
Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW.
The segment is created in reqrep.h with open(path, O_RDWR | O_CREAT, 0666), for both the request-reply and the integer-variant segments. The mode is 0666, so under the default umask 022 the file is created mode 0644 (world-readable). O_NOFOLLOW is absent, so a symlink planted at the path is followed, and O_EXCL is absent, so the open silently uses a pre-planted file instead of failing.
A "Shared" segment naturally lives in a shared directory such as /tmp or /dev/shm, where any local user can read the IPC payloads stored in the world-readable segment, and a pre-planted file or symlink at the path lets a local attacker win a pre-creation race or redirect the open.
Severity
No CVSS data available.
CWE
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::ReqRep::Shared |
Affected:
0 , < 0.05
(custom)
|
{
"containers": {
"cna": {
"affected": [
{
"collectionURL": "https://cpan.org/modules",
"defaultStatus": "unaffected",
"packageName": "Data-ReqRep-Shared",
"product": "Data::ReqRep::Shared",
"programFiles": [
"reqrep.h"
],
"repo": "https://github.com/vividsnow/perl5-data-reqrep-shared",
"vendor": "EGOR",
"versions": [
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"lessThan": "0.05",
"status": "affected",
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}
],
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{
"descriptions": [
{
"cweId": "CWE-732",
"description": "CWE-732 Incorrect Permission Assignment for Critical Resource",
"lang": "en",
"type": "CWE"
}
]
},
{
"descriptions": [
{
"cweId": "CWE-59",
"description": "CWE-59 Improper Link Resolution Before File Access",
"lang": "en",
"type": "CWE"
}
]
}
],
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"orgId": "9b29abf9-4ab0-4765-b253-1875cd9b441e",
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"references": [
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"url": "https://metacpan.org/release/EGOR/Data-ReqRep-Shared-0.05/diff/EGOR/Data-ReqRep-Shared-0.04#reqrep.h"
},
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}
],
"source": {
"discovery": "UNKNOWN"
},
"title": "Data::ReqRep::Shared versions before 0.05 for Perl create a world-readable mmap backing file and open it without O_EXCL or O_NOFOLLOW",
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"datePublished": "2026-07-21T19:07:41.644Z",
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CVE-2026-59139 (GCVE-0-2026-59139)
Vulnerability from cvelistv5 – Published: 2026-07-21 19:02 – Updated: 2026-07-21 19:02
VLAI
EPSS
VEX
Title
Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked
Summary
Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked.
The attach-time validator reqrep_validate_header checks the header scalars and region layout against the file size, but does not validate the array contents it then trusts. reqrep_recv_locked does memcpy(copy_buf, req_arena + arena_off, len) with arena_off and len read raw from the mmap'd segment and never bounded against the arena capacity (req_arena_cap).
A local peer that can write the backing file can leave the header valid while poisoning a request slot's offset and length, so receiving the request copies a file-controlled offset and length out of the arena, reading adjacent memory or crashing the process.
Severity
No CVSS data available.
CWE
- CWE-125 - Out-of-bounds Read
Assigner
References
2 references
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| EGOR | Data::ReqRep::Shared |
Affected:
0 , < 0.05
(custom)
|
{
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"cna": {
"affected": [
{
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"programFiles": [
"reqrep.h"
],
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}
],
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}
],
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{
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"lang": "en",
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}
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"discovery": "UNKNOWN"
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"title": "Data::ReqRep::Shared versions before 0.05 for Perl allow an out-of-bounds read via an unvalidated arena offset and length in reqrep_recv_locked",
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"datePublished": "2026-07-21T19:02:43.033Z",
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