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CVE-2026-45045

Fiber: X-Real-IP Spoofing via Header.Add() in BalancerForward

5.3 MediumFix available

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
Low
Availability
None

Exploit likelihood

0.46%Unchanged since Jul 9, 2026
90%50%10%1%

What each source reports

CVE List Score used 5.3

Fiber: X-Real-IP Spoofing via Header.Add() in BalancerForward

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Record
CVE-2026-45045
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-290
Updated
2026-11-02
EUVDEUVD-2026-42351 5.3

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Record
EUVD-2026-42351
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02
GitHub AdvisoriesGHSA-gcfq-8gqf-4876 5.3

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward

Summary

The BalancerForward proxy helper in GoFiber uses Header.Add() instead of Header.Set() when injecting the X-Real-IP header. This appends the real client IP as a second header value rather than replacing any attacker-supplied value. Upstream servers that read the first X-Real-IP header (nginx, Express, most HTTP servers) use the attacker's spoofed IP for logging, rate limiting, and access control.

Vulnerable Code

File: middleware/proxy/proxy.go, lines 270-285

func BalancerForward(servers []string, clients ...*fasthttp.Client) fiber.Handler {
    r := &roundrobin{
        current: 0,
        pool:    servers,
    }
    return func(c fiber.Ctx) error {
        server := r.get()
        if !strings.HasPrefix(server, "http") {
            server = "http://" + server
        }
        c.Request().Header.Add("X-Real-IP", c.IP())   // line 282: Add, not Set
        return Do(c, server+c.OriginalURL(), clients...)
    }
}

Data Flow

  1. Attacker sends request with X-Real-IP: 10.0.0.1 (spoofed internal IP)
  2. BalancerForward handler executes at line 282
  3. c.Request().Header.Add("X-Real-IP", c.IP()) APPENDS the real IP as a second header
  4. Upstream server receives: X-Real-IP: 10.0.0.1 AND X-Real-IP: <real-attacker-ip>
  5. Most HTTP servers (nginx, Node.js, Apache) read the FIRST value
  6. Upstream uses 10.0.0.1 for all IP-dependent logic

Impact

  • Rate limit bypass: IP-based rate limiting at the upstream uses the spoofed IP, allowing unlimited requests
  • IP ACL bypass: Internal IP allowlists (e.g., admin panels restricted to 10.0.0.0/8) can be bypassed
  • Audit log poisoning: Security logs record the spoofed IP, making incident investigation unreliable
  • Geolocation bypass: IP-based geofencing or region restrictions are circumvented

Fix

Replace Header.Add() with Header.Set() at line 282:

c.Request().Header.Set("X-Real-IP", c.IP())

Header.Set() replaces any existing header value, ensuring only the real client IP is forwarded.

Record
GHSA-gcfq-8gqf-4876
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-290
Updated
2026-11-02
NVD 5.3

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Record
CVE-2026-45045
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-290
Updated
2026-11-02
OSV 5.3

Fiber: X-Real-IP Spoofing via Header.Add() in BalancerForward

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Record
CVE-2026-45045
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-290
Updated
2026-11-02
OSVGHSA-gcfq-8gqf-4876 5.3

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward

Summary

The BalancerForward proxy helper in GoFiber uses Header.Add() instead of Header.Set() when injecting the X-Real-IP header. This appends the real client IP as a second header value rather than replacing any attacker-supplied value. Upstream servers that read the first X-Real-IP header (nginx, Express, most HTTP servers) use the attacker's spoofed IP for logging, rate limiting, and access control.

Vulnerable Code

File: middleware/proxy/proxy.go, lines 270-285

func BalancerForward(servers []string, clients ...*fasthttp.Client) fiber.Handler {
    r := &roundrobin{
        current: 0,
        pool:    servers,
    }
    return func(c fiber.Ctx) error {
        server := r.get()
        if !strings.HasPrefix(server, "http") {
            server = "http://" + server
        }
        c.Request().Header.Add("X-Real-IP", c.IP())   // line 282: Add, not Set
        return Do(c, server+c.OriginalURL(), clients...)
    }
}

Data Flow

  1. Attacker sends request with X-Real-IP: 10.0.0.1 (spoofed internal IP)
  2. BalancerForward handler executes at line 282
  3. c.Request().Header.Add("X-Real-IP", c.IP()) APPENDS the real IP as a second header
  4. Upstream server receives: X-Real-IP: 10.0.0.1 AND X-Real-IP: <real-attacker-ip>
  5. Most HTTP servers (nginx, Node.js, Apache) read the FIRST value
  6. Upstream uses 10.0.0.1 for all IP-dependent logic

Impact

  • Rate limit bypass: IP-based rate limiting at the upstream uses the spoofed IP, allowing unlimited requests
  • IP ACL bypass: Internal IP allowlists (e.g., admin panels restricted to 10.0.0.0/8) can be bypassed
  • Audit log poisoning: Security logs record the spoofed IP, making incident investigation unreliable
  • Geolocation bypass: IP-based geofencing or region restrictions are circumvented

Fix

Replace Header.Add() with Header.Set() at line 282:

c.Request().Header.Set("X-Real-IP", c.IP())

Header.Set() replaces any existing header value, ensuring only the real client IP is forwarded.

Record
GHSA-gcfq-8gqf-4876
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Weakness
CWE-290
Updated
2026-11-02
Show 5 moreShow less
OSVUBUNTU-CVE-2026-45045 5.3

Fiber is an Express inspired web framework written in Go. Prior to 3.3.0 and 2.52.14, the BalancerForward proxy helper in middleware/proxy/proxy.go uses Header.Add() instead of Header.Set() when injecting X-Real-IP, allowing an attacker-supplied first X-Real-IP value to be forwarded to upstream servers for logging, rate limiting, and access control. This issue is fixed in version 3.3.0 and 2.52.14.

Record
UBUNTU-CVE-2026-45045
CVSS 3.1
5.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Updated
2026-11-02
OSVGO-2026-5887 No score

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward in github.com/gofiber/fiber

GoFiber Vulnerable to X-Real-IP Spoofing via Header.Add() in BalancerForward in github.com/gofiber/fiber

Record
GO-2026-5887
Updated
2026-11-02
OSVopenSUSE-SU-2026:21551-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
openSUSE-SU-2026:21551-1
Updated
2026-11-02
OSVSUSE-SU-2026:23216-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
SUSE-SU-2026:23216-1
Updated
2026-11-02
OSVSUSE-SU-2026:23227-1 No score

Security update for govulncheck-vulndb

This update for govulncheck-vulndb fixes the following issues:

  • Update to version 0.0.20260727T201416 2026-07-27T20:14:16Z (jsc#PED-11136):

Go CVE Numbering Authority IDs added or updated with aliases:

  • GO-2026-5046 CVE-2026-46385 GHSA-w8j3-pq8g-8m7w
  • GO-2026-5047 CVE-2026-46384 GHSA-mc57-h6j3-3hmv
  • GO-2026-5048 GHSA-mx64-mj3q-7prj
  • GO-2026-5051
  • GO-2026-5069 CVE-2026-30246 GHSA-35hp-hqmv-8qg8
  • GO-2026-5074 CVE-2026-45022 GHSA-389r-gv7p-r3rp
  • GO-2026-5105 CVE-2026-41506 GHSA-3xc5-wrhm-f963
  • GO-2026-5116 CVE-2026-44517 GHSA-49p4-px3h-rq49
  • GO-2026-5158 CVE-2026-41178 GHSA-5wrp-cwcj-q835
  • GO-2026-5198 CVE-2026-41642 GHSA-7235-89m6-f4px
  • GO-2026-5208 CVE-2026-40890 GHSA-77fj-vx54-gvh7
  • GO-2026-5266 CVE-2026-41643 GHSA-8rxh-r2p6-7f2q
  • GO-2026-5309 GHSA-c3wq-j5vh-68rc
  • GO-2026-5327 CVE-2026-2303 GHSA-cp6g-7hqx-qxhp
  • GO-2026-5336 CVE-2026-45571 GHSA-crhj-59gh-8x96
  • GO-2026-5346 CVE-2026-52845 GHSA-f59h-q822-g45g
  • GO-2026-5408 GHSA-gx7w-56w6-g48x
  • GO-2026-5426 CVE-2026-39883 GHSA-hfvc-g4fc-pqhx
  • GO-2026-5435 CVE-2026-35206 GHSA-hr2v-4r36-88hr
  • GO-2026-5452 CVE-2026-34783 GHSA-j6v5-g24h-vg4j
  • GO-2026-5463 CVE-2026-8276 GHSA-jcqv-2g3v-gm88
  • GO-2026-5471 CVE-2026-6993 GHSA-jj45-xvq5-rhh9
  • GO-2026-5490 CVE-2026-44740 GHSA-m3xc-h892-ggx6
  • GO-2026-5492 CVE-2026-45135 GHSA-m675-2p33-xv9g
  • GO-2026-5506 CVE-2026-29181 GHSA-mh2q-q3fh-2475
  • GO-2026-5525 CVE-2026-42285 GHSA-p3w2-64xm-833j
  • GO-2026-5543 CVE-2026-32952 GHSA-pjcq-xvwq-hhpj
  • GO-2026-5548 CVE-2026-44166 GHSA-pq7p-mc74-g65w
  • GO-2026-5566 CVE-2026-35205 GHSA-q5jf-9vfq-h4h7
  • GO-2026-5569 GHSA-q76j-gcg9-vxc6
  • GO-2026-5585 CVE-2026-42554 GHSA-qjv7-627w-8qjv
  • GO-2026-5593 CVE-2026-40611 GHSA-qqx8-2xmm-jrv8
  • GO-2026-5595 CVE-2026-52844 GHSA-qrp7-cvwr-j2c6
  • GO-2026-5597 CVE-2026-44973 GHSA-qw64-3x98-g7q2
  • GO-2026-5606 GHSA-r46f-3rpw-hxrv
  • GO-2026-5617 CVE-2026-42306 GHSA-rg2x-37c3-w2rh
  • GO-2026-5660 CVE-2026-52846 GHSA-vcc4-2c75-vc9v
  • GO-2026-5666 CVE-2026-35204 GHSA-vmx8-mqv2-9gmg
  • GO-2026-5684 CVE-2026-42328 GHSA-w239-58x2-q8p5
  • GO-2026-5693 GHSA-w5pp-99ch-qj29
  • GO-2026-5730 GHSA-wwhq-w58m-w29c
  • GO-2026-5736 CVE-2026-44283 GHSA-x35m-3gp4-4fh5
  • GO-2026-5740 CVE-2026-44301 GHSA-x597-9fr4-5857
  • GO-2026-5748 CVE-2026-7482 GHSA-x8qc-fggm-mpqg
  • GO-2026-5750 CVE-2026-7020 GHSA-x99g-8v8j-25j2
  • GO-2026-5774 GHSA-3fxj-6jh8-hvhx
  • GO-2026-5775 GHSA-9g5q-2w5x-hmxf
  • GO-2026-5777 GHSA-rjr7-jggh-pgcp
  • GO-2026-5781
  • GO-2026-5841 GHSA-259r-337f-4rfw
  • GO-2026-5879 CVE-2026-50162 GHSA-8xwf-rjm4-xvhv
  • GO-2026-5880 CVE-2026-50163 GHSA-fxhp-mv3v-67qp
  • GO-2026-5882 CVE-2026-50151 GHSA-jxpm-75mh-9fp7
  • GO-2026-5884 GHSA-vh4v-2xq2-g5cg
  • GO-2026-5885 CVE-2026-48978 GHSA-xf85-363p-868w
  • GO-2026-5886 CVE-2026-44332 GHSA-g5vh-55hw-rxm8
  • GO-2026-5887 CVE-2026-45045 GHSA-gcfq-8gqf-4876
  • GO-2026-5912 CVE-2026-53624 GHSA-gv83-gqw6-9j2c
  • GO-2026-5954 CVE-2026-49838 GHSA-frrj-87jh-2772
  • GO-2026-5955 CVE-2026-49837 GHSA-gjrg-jjr3-56cm
  • GO-2026-5960 CVE-2026-54063 GHSA-h69g-9hx6-f3v4
  • GO-2026-5971 CVE-2026-37462 GHSA-pw7p-7fqv-hpj8
  • GO-2026-5983 CVE-2026-54448 GHSA-q3fv-x8vg-qqm4
  • GO-2026-6000 CVE-2026-50274 GHSA-74j5-xf3v-crq8
  • GO-2026-6058 CVE-2026-58442 GHSA-h2x6-g7q6-344v
  • GO-2026-6059 CVE-2026-58431 GHSA-h56g-4qw7-2mxg
  • GO-2026-6060 CVE-2026-58426 GHSA-hg5r-vq93-9fv6
  • GO-2026-6061 GHSA-hrxh-6v49-42gf
  • GO-2026-6062 CVE-2026-58434 GHSA-j2w3-9c3r-g83q
  • GO-2026-6063 CVE-2026-58417 GHSA-jr5x-6h83-wrxf
  • GO-2026-6064 CVE-2026-55984 GHSA-m932-crvm-gcp5
  • GO-2026-6065 CVE-2026-55982 GHSA-mg4f-x9v4-6h2p
  • GO-2026-6066 CVE-2026-58507 GHSA-p4mj-98mv-xq26
  • GO-2026-6067 CVE-2026-58445 GHSA-pgqf-926r-548m
  • GO-2026-6068 CVE-2026-58427 GHSA-prr9-9mp4-5gp2
  • GO-2026-6069 CVE-2026-58510 GHSA-q423-49rw-g9mh
  • GO-2026-6070 CVE-2026-58432 GHSA-q9pg-jj6x-j9p6
  • GO-2026-6071 CVE-2026-59766 GHSA-qf2f-qh6p-7v89
  • GO-2026-6072 CVE-2026-56750 GHSA-rgv6-xp99-6mgj
  • GO-2026-6073 CVE-2026-58435…
Record
SUSE-SU-2026:23227-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
github.com/gofiber/fiber/v3
Go
 through 3.2.0
3.3.0
github.com/gofiber/fiber/v2
Go
 through 2.52.13
2.52.14
github.com/gofiber/fiber/v3
Go
 before 3.3.0
3.3.0
github.com/gofiber/fiber/v2
Go
 before 2.52.14
2.52.14
govulncheck-vulndb
SUSE:Linux Enterprise Server 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1
govulncheck-vulndb
SUSE:Linux Enterprise Server for SAP applications 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1
golang-github-gofiber-fiber
Ubuntu:26.10
 All versions, plus listed versions
3.3.0-13.4.0-13.5.0-13.5.0-4
 None known
golang-github-gofiber-fiber-v2
Ubuntu:26.10
 All versions, plus listed versions
2.52.13-22.52.13-3
 None known
govulncheck-vulndb
openSUSE:Leap 16.0
From an advisory covering 77 CVEs
 before 0.0.20260727T201416-160000.1.1
0.0.20260727T201416-160000.1.1

History

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

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

In short

CVE-2026-45045 is a medium vulnerability (CVSS 5.3) in Gofiber Fiber, published July 2, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.46%, the 40th percentile. Fixed in github.com/gofiber/fiber/v3 3.3.0.

References

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Left out here: the rest of 3 source descriptions. The JSON record has them.

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